Remove Yahoo protocol

Closes #76, #293

44 files changed, 20 insertions, 9028 deletions

diff --git a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsEntryImpl.java b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsEntryImpl.java
index d4d2ed5..cf42720 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsEntryImpl.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsEntryImpl.java
@@ -43,20 +43,14 @@ public class GoogleContactsEntryImpl
     /**
      * Google Talk protocol type.
      */
-    private static final String YAHOO_PROTOCOL =
-        "http://schemas.google.com/g/2005#YAHOO";
-
-    /**
-     * Google Talk protocol type.
-     */
     private static final String AIM_PROTOCOL =
         "http://schemas.google.com/g/2005#AIM";
 
     /**
      * Google Talk protocol type.
      */
-    private static final String MSN_PROTOCOL =
-        "http://schemas.google.com/g/2005#MSN";
+    private static final String SKYPE_PROTOCOL =
+        "http://schemas.google.com/g/2005#SKYPE";
 
     /**
      * Google Talk protocol type.
@@ -432,17 +426,13 @@ public class GoogleContactsEntryImpl
             {
                 proto = GoogleContactsEntry.IMProtocol.GOOGLETALK;
             }
-            else if(protocol.equals(YAHOO_PROTOCOL))
-            {
-                proto = GoogleContactsEntry.IMProtocol.YAHOO;
-            }
             else if(protocol.equals(AIM_PROTOCOL))
             {
                 proto = GoogleContactsEntry.IMProtocol.AIM;
             }
-            else if(protocol.equals(MSN_PROTOCOL))
+            else if(protocol.equals(SKYPE_PROTOCOL))
             {
-                proto = GoogleContactsEntry.IMProtocol.MSN;
+                proto = GoogleContactsEntry.IMProtocol.SKYPE;
             }
             else if(protocol.equals(ICQ_PROTOCOL))
             {
diff --git a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsQuery.java b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsQuery.java
index d33e4da..66ea7ad 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsQuery.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsQuery.java
@@ -279,14 +279,11 @@ public class GoogleContactsQuery
                 case ICQ:
                     imSubCat = ContactDetail.SubCategory.ICQ;
                     break;
-                case YAHOO:
-                    imSubCat = ContactDetail.SubCategory.Yahoo;
-                    break;
                 case JABBER:
                     imSubCat = ContactDetail.SubCategory.Jabber;
                     break;
-                case MSN:
-                    imSubCat = ContactDetail.SubCategory.MSN;
+                case SKYPE:
+                    imSubCat = ContactDetail.SubCategory.Skype;
                     break;
                 case GOOGLETALK:
                     imSubCat = ContactDetail.SubCategory.GoogleTalk;
@@ -357,12 +354,6 @@ public class GoogleContactsQuery
                     OperationSetBasicTelephony.class,
                     ProtocolNames.JABBER);
             break;
-        case YAHOO:
-            supportedOpSets.add(OperationSetBasicInstantMessaging.class);
-            preferredProtocols.put(
-                    OperationSetBasicInstantMessaging.class,
-                    ProtocolNames.YAHOO);
-            break;
         default:
             break;
         }
diff --git a/src/net/java/sip/communicator/impl/gui/main/contactlist/contactsource/SourceUIContact.java b/src/net/java/sip/communicator/impl/gui/main/contactlist/contactsource/SourceUIContact.java
index 08aaf7e..1419416 100644
--- a/src/net/java/sip/communicator/impl/gui/main/contactlist/contactsource/SourceUIContact.java
+++ b/src/net/java/sip/communicator/impl/gui/main/contactlist/contactsource/SourceUIContact.java
@@ -709,11 +709,9 @@ public class SourceUIContact
         case AIM:
         case ICQ:
         case Jabber:
-        case MSN:
         case Yahoo:
         case Skype:
         case GoogleTalk:
-        case Facebook:
             label = subCategory.value();
             break;
         default:
diff --git a/src/net/java/sip/communicator/impl/protocol/icq/icq.provider.manifest.mf b/src/net/java/sip/communicator/impl/protocol/icq/icq.provider.manifest.mf
index da47277..959ae6d 100644
--- a/src/net/java/sip/communicator/impl/protocol/icq/icq.provider.manifest.mf
+++ b/src/net/java/sip/communicator/impl/protocol/icq/icq.provider.manifest.mf
@@ -13,5 +13,4 @@ Import-Package: org.osgi.framework,
  net.java.sip.communicator.service.dns,
  net.java.sip.communicator.service.protocol,
  net.java.sip.communicator.service.protocol.icqconstants,
- net.java.sip.communicator.service.protocol.aimconstants,
  net.java.sip.communicator.service.protocol.event
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/AbstractContactGroupYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/AbstractContactGroupYahooImpl.java
deleted file mode 100644
index 0514c16..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/AbstractContactGroupYahooImpl.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * The Yahoo implementation of the service.protocol.ContactGroup interface. There
- * are two types of groups possible here. <tt>RootContactGroupYahooImpl</tt>
- * which is the root node of the ContactList itself and
- * <tt>ContactGroupYahooImpl</tt> which represents standard groups. The
- * reason for having those 2 is that generally, Yahoo groups may not contain
- * subgroups. A contact list on the other hand may not directly contain buddies.
- *
- *
- * The reason for having an abstract class is only - being able to esily
- * recognize our own (Yahoo) contacts.
- * @author Damian Minkov
- */
-public abstract class AbstractContactGroupYahooImpl
-    implements ContactGroup
-{
-
-
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomInvitationYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomInvitationYahooImpl.java
deleted file mode 100644
index e849f6c..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomInvitationYahooImpl.java
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * The Yahoo implementation of the <tt>AdHocChatRoomInvitation</tt> interface.
- *
- * @author Rupert Burchardi
- * @author Valentin Martinet
- */
-public class AdHocChatRoomInvitationYahooImpl
-    implements AdHocChatRoomInvitation
-{
-   /**
-    * Corresponding chat room instance.
-    */
-   private AdHocChatRoom chatRoom;
-   /**
-    * The name of the inviter
-    */
-   private String inviter;
-
-   /**
-    * The invitation reason.
-    */
-   private String reason;
-
-
-   /**
-    * Creates an instance of the <tt>ChatRoomInvitationMsnImpl</tt> by
-    * specifying the targetChatRoom, the inviter, the reason.
-    *
-    * @param targetChatRoom The <tt>AdHocChatRoom</tt> for which the invitation
-    * is
-    * @param inviter The <tt>Contact</tt>, which sent the invitation
-    * @param reason The Reason for the invitation
-    */
-   public AdHocChatRoomInvitationYahooImpl( AdHocChatRoom targetChatRoom,
-                                       String inviter,
-                                       String reason)
-   {
-       this.chatRoom = targetChatRoom;
-       this.inviter = inviter;
-       this.reason = reason;
-   }
-
-   /**
-    * Returns the corresponding chat room.
-    * @return The ad-hoc chat room
-    */
-   public AdHocChatRoom getTargetAdHocChatRoom()
-   {
-       return chatRoom;
-   }
-
-   /**
-    * Returns the corresponding inviter.
-    * @return The name of the inviter
-    */
-   public String getInviter()
-   {
-       return inviter;
-   }
-
-   /**
-    * Returns the invitation reason.
-    * @return the invitation reason
-    */
-   public String getReason()
-   {
-       return reason;
-   }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomYahooImpl.java
deleted file mode 100644
index 2775f6f..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/AdHocChatRoomYahooImpl.java
+++ /dev/null
@@ -1,581 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-
-/**
- * Represents a Yahoo ad-hoc chat room, where multiple chat users could
- * communicate in a many-to-many fashion.
- *
- * @author Rupert Burchardi
- * @author Valentin Martinet
- */
-public class AdHocChatRoomYahooImpl
-    implements AdHocChatRoom
-{
-    private static final Logger logger = Logger
-        .getLogger(AdHocChatRoomYahooImpl.class);
-
-    /**
-     * Listeners that will be notified of changes in member status in the room
-     *   such as member joined, left or being kicked or dropped.
-     */
-    private Vector<AdHocChatRoomParticipantPresenceListener> memberListeners
-        = new Vector<AdHocChatRoomParticipantPresenceListener>();
-
-    /**
-     * Listeners that will be notified every time a new message is received on
-     * this ad-hoc chat room.
-     */
-    private Vector<AdHocChatRoomMessageListener> messageListeners
-        = new Vector<AdHocChatRoomMessageListener>();
-
-    /**
-     * The protocol provider that created us
-     */
-    private ProtocolProviderServiceYahooImpl provider = null;
-
-    /**
-     * The operation set that created us.
-     */
-    private OperationSetAdHocMultiUserChatYahooImpl opSetMuc = null;
-
-    /**
-     * The list of participants of this chat room.
-     */
-    private Hashtable<String, Contact> participants
-        = new Hashtable<String, Contact>();
-
-    /**
-     * The nickname of this chat room local user participant.
-     */
-    private String nickname;
-
-    /**
-     * The yahoo conference model of this ad-hoc chat room, its the
-     * representation of an ad-hoc chat room in the lib for this protocol.
-     */
-    private YahooConference yahooConference = null;
-
-    /**
-     * Creates an instance of a chat room that has been.
-     *
-     * @param multiUserChat
-     *            MultiUserChat
-     * @param provider
-     *            a reference to the currently valid jabber protocol provider.
-     */
-    public AdHocChatRoomYahooImpl(  YahooConference multiUserChat,
-                                    ProtocolProviderServiceYahooImpl provider)
-    {
-        this.yahooConference = multiUserChat;
-        this.provider = provider;
-        this.opSetMuc = (OperationSetAdHocMultiUserChatYahooImpl) provider
-            .getOperationSet(OperationSetAdHocMultiUserChat.class);
-    }
-
-    /**
-     * Registers <tt>listener</tt> so that it would receive events every time a
-     * new message is received on this chat room.
-     *
-     * @param listener A <tt>MessageListener</tt> that would be notified every
-     *                 time a new message is received on this chat room.
-     */
-    public void addMessageListener(AdHocChatRoomMessageListener listener)
-    {
-        synchronized (messageListeners)
-        {
-            if (!messageListeners.contains(listener))
-                messageListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes <tt>listener</tt> so that it won't receive any further message
-     * events from this room.
-     *
-     * @param listener The <tt>MessageListener</tt> to remove from this room
-     */
-    public void removeMessageListener(AdHocChatRoomMessageListener listener)
-    {
-        synchronized (messageListeners)
-        {
-            messageListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Adds a listener that will be notified of changes in our status in the
-     * room.
-     *
-     * @param listener A participant status listener.
-     */
-    public void addParticipantPresenceListener(
-            AdHocChatRoomParticipantPresenceListener listener)
-    {
-        synchronized (memberListeners)
-        {
-            if (!memberListeners.contains(listener))
-                memberListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes a listener that was being notified of changes in the status of
-     * other chat room participants.
-     *
-     * @param listener A participant status listener.
-     */
-    public void removeParticipantPresenceListener(
-        AdHocChatRoomParticipantPresenceListener listener)
-    {
-        synchronized (memberListeners)
-        {
-            memberListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Create a Message instance for sending a simple text messages with default
-     * (text/plain) content type and encoding.
-     *
-     * @param messageText
-     *            the string content of the message.
-     * @return Message the newly created message
-     */
-    public Message createMessage(String messageText)
-    {
-        Message msg = new MessageYahooImpl(messageText,
-            OperationSetBasicInstantMessaging.DEFAULT_MIME_TYPE,
-            OperationSetBasicInstantMessaging.DEFAULT_MIME_ENCODING, null);
-        return msg;
-    }
-
-    /**
-     * Returns a <tt>List</tt> of <tt>Contact</tt>s corresponding to all members
-     * currently participating in this room.
-     *
-     * @return a <tt>List</tt> of <tt>Contact</tt> corresponding to all room
-     *         members.
-     */
-    public List<Contact> getParticipants()
-    {
-        return new LinkedList<Contact>(participants.values());
-    }
-
-    /**
-     * Updates the member list of the chat room.
-     *
-     */
-    public void updateParticipantsList()
-    {
-        Iterator<?> it = yahooConference.getMembers().iterator();
-
-        while (it.hasNext())
-        {
-            YahooUser user = (YahooUser) it.next();
-            Contact contact;
-            OperationSetPersistentPresenceYahooImpl presenceOpSet
-                = (OperationSetPersistentPresenceYahooImpl) this
-                .getParentProvider().getOperationSet(
-                    OperationSetPersistentPresence.class);
-
-            contact = presenceOpSet.findContactByID(user.getId());
-
-            if(!participants.containsKey(contact.getDisplayName()))
-            {
-                participants.put(contact.getDisplayName(), contact);
-            }
-        }
-    }
-
-    /**
-     * Returns the identifier of this <tt>AdHocChatRoom</tt>.
-     *
-     * @return a <tt>String</tt> containing the identifier of this
-     * <tt>AdHocChatRoom</tt>.
-     */
-    public String getIdentifier()
-    {
-        return yahooConference.getName();
-    }
-
-    /**
-     * Returns the number of participants that are currently in this ad-hoc chat
-     * room.
-     *
-     * @return the number of <tt>Contact</tt>s, currently participating in
-     * this ad-hoc room.
-     */
-    public int getParticipantsCount()
-    {
-        return yahooConference.getMembers().size();
-    }
-
-    /**
-     * Returns the name of this <tt>AdHocChatRoom</tt>.
-     *
-     * @return a <tt>String</tt> containing the name of this
-     * <tt>AdHocChatRoom</tt>.
-     */
-    public String getName()
-    {
-        return yahooConference.getName();
-    }
-
-    /**
-     * Returns the protocol provider service that created us.
-     *
-     * @return the protocol provider service that created us.
-     */
-    public ProtocolProviderService getParentProvider()
-    {
-        return provider;
-    }
-
-    /**
-     * Returns the local user's nickname in the context of this chat room or
-     * <tt>null</tt> if not currently joined.
-     *
-     * @return the nickname currently being used by the local user in the
-     * context of the local ad-hoc chat room.
-     */
-
-    public String getUserNickname()
-    {
-        if(nickname == null)
-            nickname = provider.getYahooSession().getLoginIdentity().getId();
-
-        return nickname;
-    }
-
-    /**
-     * Invites another user to this room. If we're not joined nothing will
-     * happen.
-     *
-     * @param userAddress The identifier of the contact (email address or yahoo
-     * id)
-     * @param reason The invite reason, which is send to the invitee.
-     */
-    public void invite(String userAddress, String reason)
-    {
-        try
-        {
-                provider.getYahooSession().extendConference(yahooConference,
-                    userAddress, reason);
-        }
-        catch (IOException ioe)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Failed to invite the user: " + userAddress
-                + " Error: " + ioe);
-        }
-    }
-
-    /**
-     * Indicates whether or not this chat room is corresponding to a server
-     * channel. Note: Returns always <code>false</code>.
-     *
-     * @return Always <code>false</code> since system chat room can't be joined
-     * with current yahoo library.
-     */
-    public boolean isSystem()
-    {
-        return false;
-    }
-
-    /**
-     * Joins this chat room with the nickname of the local user so that the user
-     * would start receiving events and messages for it.
-     *
-     * @throws OperationFailedException with the corresponding code if an error
-     * occurs while joining the room.
-     */
-    public void join() throws OperationFailedException
-    {
-        this.nickname = provider.getAccountID().getUserID();
-        try
-        {
-            provider.getYahooSession().acceptConferenceInvite(yahooConference);
-
-            // We don't specify a reason.
-            opSetMuc.fireLocalUserPresenceEvent(this,
-                LocalUserAdHocChatRoomPresenceChangeEvent.LOCAL_USER_JOINED,
-                null);
-        }
-        catch (Exception e)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Couldn't join the chat room: "
-                + yahooConference.getName() + e);
-        }
-    }
-
-    /**
-     * Leave this chat room. Once this method is called, the user won't be
-     * listed as a member of the chat room any more and no further chat events
-     * will be delivered. Depending on the underlying protocol and
-     * implementation leave() might cause the room to be destroyed if it has
-     * been created by the local user.
-     */
-    public void leave()
-    {
-        try
-        {
-            provider.getYahooSession().leaveConference(yahooConference);
-
-            Iterator< Map.Entry<String, Contact>> membersSet
-                = participants.entrySet().iterator();
-
-            while (membersSet.hasNext())
-            {
-                Map.Entry<String, Contact> memberEntry = membersSet.next();
-                Contact participant = memberEntry.getValue();
-
-                fireParticipantPresenceEvent(participant,
-                    AdHocChatRoomParticipantPresenceChangeEvent.CONTACT_LEFT,
-                    "Local user has left the chat room.");
-            }
-        }
-        catch (IOException ioe)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Failed to leave the chat room: "
-                + yahooConference.getName() + " Error: " + ioe);
-        }
-
-        participants.clear();
-    }
-
-    /**
-     * Sends the <tt>message</tt> to the destination indicated by the
-     * <tt>to</tt> contact.
-     *
-     * @param message The <tt>Message</tt> to send.
-     * @throws OperationFailedException if the underlying stack is not
-     * registered or initialized or if the chat room is not joined.
-     */
-    public void sendMessage(Message message) throws OperationFailedException
-    {
-        assertConnected();
-
-        try
-        {
-            provider.getYahooSession().sendConferenceMessage(yahooConference,
-                message.getContent());
-
-            AdHocChatRoomMessageDeliveredEvent msgDeliveredEvt
-                = new AdHocChatRoomMessageDeliveredEvent(
-                    this,
-                    new Date(),
-                    message,
-                    ChatRoomMessageDeliveredEvent.CONVERSATION_MESSAGE_DELIVERED);
-
-            fireMessageEvent(msgDeliveredEvt);
-        }
-        catch (Exception e)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Failed to send a conference message.");
-        }
-    }
-
-    /**
-     * Notifies all interested listeners that a
-     * <tt>AdHocChatRoomMessageDeliveredEvent</tt>,
-     * <tt>AdHocChatRoomMessageReceivedEvent</tt> or a
-     * <tt>AdHocChatRoomMessageDeliveryFailedEvent</tt> has been fired.
-     * @param evt The specific event
-     */
-    public void fireMessageEvent(EventObject evt)
-    {
-        Iterator<AdHocChatRoomMessageListener> listeners = null;
-        synchronized (messageListeners)
-        {
-            listeners = new ArrayList<AdHocChatRoomMessageListener>(
-                messageListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            AdHocChatRoomMessageListener listener = listeners.next();
-
-            if (evt instanceof AdHocChatRoomMessageDeliveredEvent)
-            {
-                listener.messageDelivered(
-                    (AdHocChatRoomMessageDeliveredEvent) evt);
-            }
-            else if (evt instanceof AdHocChatRoomMessageReceivedEvent)
-            {
-                listener.messageReceived(
-                    (AdHocChatRoomMessageReceivedEvent) evt);
-            }
-            else if (evt instanceof AdHocChatRoomMessageDeliveryFailedEvent)
-            {
-                listener.messageDeliveryFailed(
-                    (AdHocChatRoomMessageDeliveryFailedEvent) evt);
-            }
-        }
-    }
-
-    /**
-     * Creates the corresponding AdHocChatRoomParticipantPresenceChangeEvent and
-     * notifies all <tt>AdHocChatRoomParticipantPresenceListener</tt>s that a
-     * Contact has joined or left this <tt>AdHocChatRoom</tt>.
-     *
-     * @param participant the <tt>Contact</tt> that this
-     * @param eventID the identifier of the event
-     * @param eventReason the reason of the event
-     */
-    public void fireParticipantPresenceEvent(Contact participant, String eventID,
-           String eventReason)
-    {
-        AdHocChatRoomParticipantPresenceChangeEvent evt
-            = new AdHocChatRoomParticipantPresenceChangeEvent(this,
-                participant,
-                eventID,
-                eventReason);
-
-        if (logger.isTraceEnabled())
-            logger.trace("Will dispatch the following ChatRoom event: " + evt);
-
-        Iterator<AdHocChatRoomParticipantPresenceListener> listeners = null;
-        synchronized (memberListeners)
-        {
-            listeners = new ArrayList<AdHocChatRoomParticipantPresenceListener>
-                (memberListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            AdHocChatRoomParticipantPresenceListener listener = listeners.next();
-
-            listener.participantPresenceChanged(evt);
-        }
-    }
-
-    /**
-     * Finds the participant of this ad-hoc chat room corresponding to the
-     * given address.
-     *
-     * @param address the address to search for.
-     * @return the participant of this chat room corresponding to the given
-     * nick name.
-     */
-    public Contact findParticipantForAddress(String address)
-    {
-        Iterator<Contact> participantsIter
-            = this.participants.values().iterator();
-
-        while (participantsIter.hasNext())
-        {
-            Contact contact = participantsIter.next();
-
-            if (contact.getAddress().equals(address))
-            {
-                return contact;
-            }
-        }
-
-        return null;
-    }
-
-    /**
-     * Removes the specified ad-hoc chat room participant from the participants
-     * list of this ad-hoc chat room.
-     * @param participant The member, who should be removed from the ad-hoc chat room
-     * participants list.
-     */
-    public void removeChatRoomParticipant(Contact participant)
-    {
-        if(participant == null)
-            return;
-
-        participants.remove(participant.getDisplayName());
-
-        fireParticipantPresenceEvent(participant,
-            AdHocChatRoomParticipantPresenceChangeEvent.CONTACT_LEFT, null);
-    }
-
-    /**
-     * Adds a participant to the ad-hoc chat room participant list.
-     * @param participant The participant, who should be added to the ad-hoc
-     * chat room participant list.
-     */
-    public void addChatRoomParticipant(Contact participant)
-    {
-        if (participant == null)
-            return;
-
-        if (!participants.containsKey(participant.getDisplayName()))
-        {
-            participants.put(participant.getDisplayName(), participant);
-
-            fireParticipantPresenceEvent(participant,
-                AdHocChatRoomParticipantPresenceChangeEvent.CONTACT_JOINED,
-                null);
-        }
-    }
-
-    /**
-     * Returns the yahoo conference model of this chat room.
-     * @return The yahoo conference.
-     */
-    public YahooConference getYahooConference()
-    {
-        return yahooConference;
-    }
-
-    /**
-     * Utility method throwing an exception if the stack is not properly
-     * initialized.
-     * @throws java.lang.IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     */
-    private void assertConnected() throws IllegalStateException
-    {
-        if (provider == null)
-            throw new IllegalStateException(
-                "The provider must be non-null and signed on the "
-                +"service before being able to communicate.");
-        if (!provider.isRegistered())
-            throw new IllegalStateException(
-                "The provider must be signed on the service before "
-                +"being able to communicate.");
-    }
-
-    /**
-     * Determines whether this chat room should be stored in the configuration
-     * file or not. If the chat room is persistent it still will be shown after a
-     * restart in the chat room list. A non-persistent chat room will be only in
-     * the chat room list until the the program is running.
-     *
-     * @return true if this chat room is persistent, false otherwise
-     */
-    public boolean isPersistent()
-    {
-       return false;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ContactGroupYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ContactGroupYahooImpl.java
deleted file mode 100644
index 1f73aac..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ContactGroupYahooImpl.java
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import ymsg.network.*;
-
-/**
- * The Yahoo implementation of the ContactGroup interface. Intances of this class
- * (contrary to <tt>RootContactGroupYahooImpl</tt>) may only contain buddies
- * and cannot have sub groups. Note that instances of this class only use the
- * corresponding smack source group for reading their names and only
- * initially fill their <tt>buddies</tt> <tt>java.util.List</tt> with
- * the ContactYahooImpl objects corresponding to those contained in the source
- * group at the moment it is being created. They would, however, never try to
- * sync or update their contents ulteriorly. This would have to be done through
- * the addContact()/removeContact() methods.
- * The content of buddies is created on creating of the group and when the smack
- * source group is changed.
- *
- * @author Damian Minkov
- * @author Emil Ivov
- */
-public class ContactGroupYahooImpl
-    extends AbstractContactGroupYahooImpl
-{
-    private final Map<String, Contact> buddies
-        = new Hashtable<String, Contact>();
-
-    private boolean isResolved = false;
-
-    /**
-     * The Yahoo Group corresponding to this contact group.
-     */
-    private YahooGroup yahooGroup = null;
-
-    /**
-     * a list that would always remain empty. We only use it so that we're able
-     * to extract empty iterators
-     */
-    private final List<ContactGroup> dummyGroupsList
-        = new LinkedList<ContactGroup>();
-
-    private String tempId = null;
-
-    private final ServerStoredContactListYahooImpl ssclCallback;
-
-    /**
-     * Creates an Yahoo group using the specified <tt>YahooGroup</tt> as
-     * a source. The newly created group will always return the name of the
-     * underlying RosterGroup and would thus automatically adapt to changes.
-     * It would, however, not receive or try to poll for modifications of the
-     * buddies it contains and would therefore have to be updated manually by
-     * ServerStoredContactListImpl update will only be done if source group
-     * is changed.
-
-     * @param yahooGroup the Yahoo Group correspoinding to the group
-     * @param groupMembers the group members that we should add to the group.
-     * @param ssclCallback a callback to the server stored contact list
-     * we're creating.
-     * @param isResolved a boolean indicating whether or not the group has been
-     * resolved against the server.
-     */
-    ContactGroupYahooImpl(
-                        YahooGroup yahooGroup,
-                        Vector<YahooUser> groupMembers,
-                        ServerStoredContactListYahooImpl ssclCallback,
-                        boolean isResolved)
-    {
-        this.yahooGroup = yahooGroup;
-        this.isResolved = isResolved;
-        this.ssclCallback = ssclCallback;
-
-        for (YahooUser yahooUser : groupMembers)
-        {
-            //only add the contact if it doesn't already exist in some other
-            //group. this would be necessary if Yahoo! one day start allowing
-            //the  same contact in more than one group, which is not quite
-            //unlikely since most of the other protocols do it.
-            if(ssclCallback.findContactByYahooUser(yahooUser) != null)
-            {
-                continue;
-            }
-
-
-            addContact(
-                new ContactYahooImpl(yahooUser,ssclCallback, true, true));
-        }
-    }
-
-    ContactGroupYahooImpl( String id,
-                           ServerStoredContactListYahooImpl ssclCallback)
-    {
-        this.tempId = id;
-        this.isResolved = false;
-        this.ssclCallback = ssclCallback;
-    }
-
-
-    /**
-     * Returns the number of <tt>Contact</tt> members of this
-     * <tt>ContactGroup</tt>
-     *
-     * @return an int indicating the number of <tt>Contact</tt>s,
-     *   members of this <tt>ContactGroup</tt>.
-     */
-    public int countContacts()
-    {
-        return buddies.size();
-    }
-
-    /**
-     * Returns a reference to the root group which in Yahoo is the parent of
-     * any other group since the protocol does not support subgroups.
-     * @return a reference to the root group.
-     */
-    public ContactGroup getParentContactGroup()
-    {
-        return ssclCallback.getRootGroup();
-    }
-
-    /**
-     * Adds the specified contact to the end of this group.
-     * @param contact the new contact to add to this group
-     */
-    void addContact(ContactYahooImpl contact)
-    {
-        buddies.put(contact.getAddress().toLowerCase(), contact);
-    }
-
-
-    /**
-     * Removes the specified contact from this contact group
-     * @param contact the contact to remove.
-     */
-    void removeContact(ContactYahooImpl contact)
-    {
-        buddies.remove(contact.getAddress().toLowerCase());
-    }
-
-    /**
-     * Returns an Iterator over all contacts, member of this
-     * <tt>ContactGroup</tt>.
-     *
-     * @return a java.util.Iterator over all contacts inside this
-     *   <tt>ContactGroup</tt>. In case the group doesn't contain any
-     * memebers it will return an empty iterator.
-     */
-    public Iterator<Contact> contacts()
-    {
-        return buddies.values().iterator();
-    }
-
-    /**
-     * Returns the <tt>Contact</tt> with the specified address or
-     * identifier.
-     * @param id the addres or identifier of the <tt>Contact</tt> we are
-     * looking for.
-     * @return the <tt>Contact</tt> with the specified id or address.
-     */
-    public Contact getContact(String id)
-    {
-        return this.findContact(id);
-    }
-
-    /**
-     * Returns the name of this group.
-     * @return a String containing the name of this group.
-     */
-    public String getGroupName()
-    {
-        if(isResolved)
-            return ServerStoredContactListYahooImpl
-                .replaceIllegalChars(yahooGroup.getName());
-        else
-            return tempId;
-    }
-
-    /**
-     * Determines whether the group may contain subgroups or not.
-     *
-     * @return always false since only the root group may contain subgroups.
-     */
-    public boolean canContainSubgroups()
-    {
-        return false;
-    }
-
-    /**
-     * Returns the subgroup with the specified index (i.e. always null since
-     * this group may not contain subgroups).
-     *
-     * @param index the index of the <tt>ContactGroup</tt> to retrieve.
-     * @return always null
-     */
-    public ContactGroup getGroup(int index)
-    {
-        return null;
-    }
-
-    /**
-     * Returns the subgroup with the specified name.
-     * @param groupName the name of the <tt>ContactGroup</tt> to retrieve.
-     * @return the <tt>ContactGroup</tt> with the specified index.
-     */
-    public ContactGroup getGroup(String groupName)
-    {
-        return null;
-    }
-
-    /**
-     * Returns an empty iterator. Subgroups may only be present in the root
-     * group.
-     *
-     * @return an empty iterator
-     */
-    public Iterator<ContactGroup> subgroups()
-    {
-        return dummyGroupsList.iterator();
-    }
-
-    /**
-     * Returns the number of subgroups contained by this group, which is
-     * always 0 since sub groups in the protocol may only be contained
-     * by the root group - <tt>RootContactGroupImpl</tt>.
-     * @return a 0 int.
-     */
-    public int countSubgroups()
-    {
-        return 0;
-    }
-
-    /**
-     * Returns a hash code value for the object, which is actually the hashcode
-     * value of the groupname.
-     *
-     * @return  a hash code value for this ContactGroup.
-     */
-    @Override
-    public int hashCode()
-    {
-        return getGroupName().hashCode();
-    }
-
-    /**
-     * Indicates whether some other object is "equal to" this group.
-     *
-     * @param   obj   the reference object with which to compare.
-     * @return  <tt>true</tt> if this object is the same as the obj
-     *          argument; <tt>false</tt> otherwise.
-     */
-    @Override
-    public boolean equals(Object obj)
-    {
-        if(    obj == this )
-            return true;
-
-        if (obj == null
-            || !(obj instanceof ContactGroupYahooImpl) )
-               return false;
-
-        if(!((ContactGroup)obj).getGroupName().equals(getGroupName()))
-            return false;
-
-        if(getProtocolProvider() != ((ContactGroup)obj).getProtocolProvider())
-            return false;
-
-        //since Yahoo does not support having two groups with the same name
-        // at this point we could bravely state that the groups are the same
-        // and not bother to compare buddies. (gotta check that though)
-        return true;
-    }
-
-    /**
-     * Returns the protocol provider that this group belongs to.
-     * @return a reference to the ProtocolProviderService instance that this
-     * ContactGroup belongs to.
-     */
-    public ProtocolProviderService getProtocolProvider()
-    {
-        return this.ssclCallback.getParentProvider();
-    }
-
-    /**
-     * Returns a string representation of this group, in the form
-     * YahooGroup.GroupName[size]{ buddy1.toString(), buddy2.toString(), ...}.
-     * @return  a String representation of the object.
-     */
-    @Override
-    public String toString()
-    {
-        StringBuffer buff = new StringBuffer("YahooGroup.");
-        buff.append(getGroupName());
-        buff.append(", childContacts="+countContacts()+":[");
-
-        Iterator<Contact> contacts = contacts();
-        while (contacts.hasNext())
-        {
-            Contact contact = contacts.next();
-            buff.append(contact.toString());
-            if(contacts.hasNext())
-                buff.append(", ");
-        }
-        return buff.append("]").toString();
-    }
-
-    /**
-     * Returns the contact encapsulating with the spcieified name or
-     * null if no such contact was found.
-     *
-     * @param id the id for the contact we're looking for.
-     * @return the <tt>ContactYahooImpl</tt> corresponding to the specified
-     * screnname or null if no such contact existed.
-     */
-    ContactYahooImpl findContact(String id)
-    {
-        if(id == null)
-            return null;
-        return (ContactYahooImpl)buddies.get(id.toLowerCase());
-    }
-
-    /**
-     * Determines whether or not this contact group is being stored by the
-     * server. Non persistent contact groups exist for the sole purpose of
-     * containing non persistent contacts.
-     * @return true if the contact group is persistent and false otherwise.
-     */
-    public boolean isPersistent()
-    {
-        return true;
-    }
-
-    /**
-     * Returns null as no persistent data is required and the contact address is
-     * sufficient for restoring the contact.
-     * <p>
-     * @return null as no such data is needed.
-     */
-    public String getPersistentData()
-    {
-        return null;
-    }
-
-    /**
-     * Determines whether or not this contact group has been resolved against
-     * the server. Unresolved group are used when initially loading a contact
-     * list that has been stored in a local file until the presence operation
-     * set has managed to retrieve all the contact list from the server and has
-     * properly mapped contacts and groups to their corresponding on-line
-     * buddies.
-     * @return true if the contact has been resolved (mapped against a buddy)
-     * and false otherwise.
-     */
-    public boolean isResolved()
-    {
-        return isResolved;
-    }
-
-    /**
-     * Resolve this contact group against the specified group
-     * @param yahooGroup the server stored group
-     */
-    @SuppressWarnings("unchecked") //jymsg legacy code
-    void setResolved(YahooGroup yahooGroup)
-    {
-        if(isResolved)
-            return;
-
-        this.isResolved = true;
-
-        this.yahooGroup = yahooGroup;
-
-        Vector<YahooUser> contacts = yahooGroup.getMembers();
-        for (YahooUser item : contacts)
-        {
-            ContactYahooImpl contact =
-                ssclCallback.findContactById(item.getId());
-            if(contact != null)
-            {
-                contact.setResolved(item);
-
-                ssclCallback.fireContactResolved(this, contact);
-            }
-            else
-            {
-                ContactYahooImpl newContact =
-                    new ContactYahooImpl(item, ssclCallback, true, true);
-                addContact(newContact);
-
-                ssclCallback.fireContactAdded(this, newContact);
-            }
-        }
-    }
-
-    /**
-     * Returns a <tt>String</tt> that uniquely represnets the group. In this we
-     * use the name of the group as an identifier. This may cause problems
-     * though, in clase the name is changed by some other application between
-     * consecutive runs of the sip-communicator.
-     *
-     * @return a String representing this group in a unique and persistent
-     * way.
-     */
-    public String getUID()
-    {
-        return getGroupName();
-    }
-
-    /**
-     * The source group we are encapsulating
-     * @return YahooGroup
-     */
-    YahooGroup getSourceGroup()
-    {
-        return yahooGroup;
-    }
-
-    /**
-     * Change the source group
-     * change the buddies
-     *
-     * @param newGroup YahooGroup
-     */
-    void setSourceGroup(YahooGroup newGroup)
-    {
-        this.yahooGroup = newGroup;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ContactYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ContactYahooImpl.java
deleted file mode 100644
index b23ee3d..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ContactYahooImpl.java
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.yahooconstants.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-
-/**
- * The Yahoo implementation of the service.protocol.Contact interface.
- * @author Damian Minkov
- * @author Emil Ivov
- */
-public class ContactYahooImpl
-    extends AbstractContact
-{
-    private static final Logger logger =
-        Logger.getLogger(ContactYahooImpl.class);
-
-    private YahooUser contact = null;
-    private byte[] image = null;
-    private PresenceStatus status = YahooStatusEnum.OFFLINE;
-    private ServerStoredContactListYahooImpl ssclCallback = null;
-    private boolean isPersistent = false;
-    private boolean isResolved = false;
-    private boolean isVolatile = false;
-
-    private String yahooID = null;
-    private String id = null;
-
-    private String statusMessage = null;
-
-    /**
-     * Creates an YahooContactImpl with custom yahooID
-     * @param yahooID sets the contact Id if its different from the YahooUser id
-     * @param contact the contact object that we will be encapsulating.
-     * @param ssclCallback a reference to the ServerStoredContactListImpl
-     * instance that created us.
-     * @param isPersistent determines whether this contact is persistent or not.
-     * @param isResolved specifies whether the contact has been resolved against
-     * the server contact list
-     */
-    ContactYahooImpl(
-                   String yahooID,
-                   YahooUser contact,
-                   ServerStoredContactListYahooImpl ssclCallback,
-                   boolean isPersistent,
-                   boolean isResolved)
-    {
-        this.yahooID = yahooID;
-
-        this.contact = contact;
-        this.ssclCallback = ssclCallback;
-        this.isPersistent = isPersistent;
-        this.isResolved = isResolved;
-
-        if(contact != null)
-            id = contact.getId();
-        else if(yahooID != null)
-            id = YahooSession.getYahooUserID(yahooID);
-    }
-
-    /**
-     * Creates an YahooContactImpl
-     * @param contact the contact object that we will be encapsulating.
-     * @param ssclCallback a reference to the ServerStoredContactListImpl
-     * instance that created us.
-     * @param isPersistent determines whether this contact is persistent or not.
-     * @param isResolved specifies whether the contact has been resolved against
-     * the server contact list
-     */
-    ContactYahooImpl(
-                   YahooUser contact,
-                   ServerStoredContactListYahooImpl ssclCallback,
-                   boolean isPersistent,
-                   boolean isResolved)
-    {
-        this(null, contact, ssclCallback, isPersistent, isResolved);
-    }
-
-    /**
-     * Creates volatile or unresolved contact
-     */
-    ContactYahooImpl(
-        String id,
-        ServerStoredContactListYahooImpl ssclCallback,
-        boolean isResolved,
-        boolean isPersistent,
-        boolean isVolatile)
-    {
-        this.yahooID = id;
-        this.ssclCallback = ssclCallback;
-        this.isPersistent = isPersistent;
-        this.isResolved = isResolved;
-        this.isVolatile = isVolatile;
-
-        if(id != null)
-            this.id = YahooSession.getYahooUserID(yahooID);
-    }
-
-    /**
-     * Returns the Yahoo Userid of this contact
-     * @return the Yahoo Userid of this contact
-     */
-    public String getAddress()
-    {
-        // if the contact is volatile or with custom id return it
-        if(yahooID != null)
-            return yahooID;
-        // otherwise return the supplied contact id
-        else
-            return contact.getId();
-    }
-
-    /**
-     * Returns the custom yahooID if set
-     */
-    String getYahooID()
-    {
-        return yahooID;
-    }
-
-    /**
-     * Returns the contact Id.
-     * If contact missing the yahooID without @yahoo.com part is returned
-     */
-    String getID()
-    {
-        return id;
-    }
-
-    /**
-     * Returns whether the contact is volatile.
-     */
-    boolean isVolatile()
-    {
-        return isVolatile;
-    }
-
-    /**
-     * Returns an avatar if one is already present or <tt>null</tt> in case it
-     * is not in which case it the method also queues the contact for image
-     * updates.
-     *
-     * @return the avatar of this contact or <tt>null</tt> if no avatar is
-     * currently available.
-     */
-    public byte[] getImage()
-    {
-        return getImage(true);
-    }
-
-    /**
-     * Returns a reference to the image assigned to this contact. If no image
-     * is present and the retrieveIfNecessary flag is true, we schedule the
-     * image for retrieval from the server.
-     *
-     * @param retrieveIfNecessary specifies whether the method should queue
-     * this contact for avatar update from the server.
-     *
-     * @return a reference to the image currently stored by this contact.
-     */
-    public byte[] getImage(boolean retrieveIfNecessary)
-    {
-        try
-        {
-            if(retrieveIfNecessary)
-            {
-                if(ssclCallback.getParentProvider() == null
-                    || !ssclCallback.getParentProvider().isRegistered())
-                {
-                    throw new IllegalStateException(
-                        "The provider must be signed on the service before "
-                        +"being able to communicate.");
-                }
-
-                YahooSession ses = ssclCallback.getParentProvider().
-                    getYahooSession();
-                if(image == null && ses != null)
-                    ses.requestPicture(id);
-            }
-        }
-        catch (Exception e)
-        {
-            if (logger.isInfoEnabled())
-                logger.info("Error requesting image!", e);
-        }
-
-        if(logger.isDebugEnabled())
-            logger.debug("returning picture " + image);
-
-        return image;
-    }
-
-    /**
-     * Used to set the image of the contact if it is updated
-     *
-     * @param image a photo/avatar associated with this contact.
-     */
-    protected void setImage(byte[] image)
-    {
-        if (logger.isInfoEnabled())
-            logger.info("setting image " + image);
-
-        this.image = image;
-    }
-
-    /**
-     * Returns a string representation of this contact, containing most of its
-     * representative details.
-     *
-     * @return  a string representation of this contact.
-     */
-    @Override
-    public String toString()
-    {
-        StringBuffer buff =  new StringBuffer("YahooContact[ id=");
-        buff.append(getAddress()).append("]");
-
-        return buff.toString();
-    }
-
-    /**
-     * Sets the status that this contact is currently in. The method is to
-     * only be called as a result of a status update received from the server.
-     *
-     * @param status the YahooStatusEnum that this contact is currently in.
-     */
-    void updatePresenceStatus(PresenceStatus status)
-    {
-        this.status = status;
-    }
-
-    /**
-     * Returns the status of the contact as per the last status update we've
-     * received for it. Note that this method is not to perform any network
-     * operations and will simply return the status received in the last
-     * status update message. If you want a reliable way of retrieving someone's
-     * status, you should use the <tt>queryContactStatus()</tt> method in
-     * <tt>OperationSetPresence</tt>.
-     * @return the PresenceStatus that we've received in the last status update
-     * pertaining to this contact.
-     */
-    public PresenceStatus getPresenceStatus()
-    {
-        return status;
-    }
-
-    /**
-     * Returns a String that could be used by any user interacting modules for
-     * referring to this contact. An alias is not necessarily unique but is
-     * often more human readable than an address (or id).
-     * @return a String that can be used for referring to this contact when
-     * interacting with the user.
-     */
-    public String getDisplayName()
-    {
-        return getAddress();
-    }
-
-    /**
-     * Returns a reference to the contact group that this contact is currently
-     * a child of or null if the underlying protocol does not suppord persistent
-     * presence.
-     * @return a reference to the contact group that this contact is currently
-     * a child of or null if the underlying protocol does not suppord persistent
-     * presence.
-     */
-    public ContactGroup getParentContactGroup()
-    {
-        return ssclCallback.findContactGroup(this);
-    }
-
-
-    /**
-     * Returns a reference to the protocol provider that created the contact.
-     * @return a refererence to an instance of the ProtocolProviderService
-     */
-    public ProtocolProviderService getProtocolProvider()
-    {
-        return ssclCallback.getParentProvider();
-    }
-
-    /**
-     * Determines whether or not this contact is being stored by the server.
-     * Non persistent contacts are common in the case of simple, non-persistent
-     * presence operation sets. They could however also be seen in persistent
-     * presence operation sets when for example we have received an event
-     * from someone not on our contact list. Non persistent contacts are
-     * volatile even when coming from a persistent presence op. set. They would
-     * only exist until the application is closed and will not be there next
-     * time it is loaded.
-     * @return true if the contact is persistent and false otherwise.
-     */
-    public boolean isPersistent()
-    {
-        return isPersistent;
-    }
-
-    /**
-     * Specifies whether this contact is to be considered persistent or not. The
-     * method is to be used _only_ when a non-persistent contact has been added
-     * to the contact list and its encapsulated VolatileBuddy has been repalced
-     * with a standard buddy.
-     * @param persistent true if the buddy is to be considered persistent and
-     * false for volatile.
-     */
-    void setPersistent(boolean persistent)
-    {
-        this.isPersistent = persistent;
-    }
-
-    /**
-     * Resolve this contact against the given entry
-     * @param entry the server stored entry
-     */
-    void setResolved(YahooUser entry)
-    {
-        if(isResolved)
-            return;
-
-        this.isResolved = true;
-        contact = entry;
-        isVolatile = false;
-    }
-
-    /**
-     * Returns the persistent data
-     * @return the persistent data
-     */
-    public String getPersistentData()
-    {
-        return null;
-    }
-
-    /**
-     * Determines whether or not this contact has been resolved against the
-     * server. Unresolved contacts are used when initially loading a contact
-     * list that has been stored in a local file until the presence operation
-     * set has managed to retrieve all the contact list from the server and has
-     * properly mapped contacts to their on-line buddies.
-     * @return true if the contact has been resolved (mapped against a buddy)
-     * and false otherwise.
-     */
-    public boolean isResolved()
-    {
-        return isResolved;
-    }
-
-    public void setPersistentData(String persistentData)
-    {
-    }
-
-    /**
-     * Get source contact
-     * @return YahooContact
-     */
-    YahooUser getSourceContact()
-    {
-        return contact;
-    }
-
-    /**
-     * Return the current status message of this contact.
-     *
-     * @return the current status message
-     */
-    public String getStatusMessage()
-    {
-        return statusMessage;
-    }
-
-    /**
-     * Sets the current status message for this contact
-     * @param statusMessage the message
-     */
-    protected void setStatusMessage(String statusMessage)
-    {
-        this.statusMessage = statusMessage;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/FileTransferImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/FileTransferImpl.java
deleted file mode 100644
index 3f42079..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/FileTransferImpl.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * The Filetransfer imeplementation for yahoo.
- * @author Damian Minkov
- */
-public class FileTransferImpl
-    extends AbstractFileTransfer
-
-{
-    private ProtocolProviderServiceYahooImpl yahooProvider;
-    private String id = null;
-    private Contact contact = null;
-    private File file = null;
-    private int direction = -1;
-    private long transferedBytes;
-
-    public FileTransferImpl(ProtocolProviderServiceYahooImpl yahooProvider,
-        String id, Contact contact, File file, int direction)
-    {
-        this.yahooProvider = yahooProvider;
-        this.id = id;
-        this.contact = contact;
-        this.file = file;
-        this.direction = direction;
-    }
-
-    /**
-     * Cancels this file transfer. When this method is called transfer should
-     * be interrupted.
-     */
-    @Override
-    public void cancel()
-    {
-        yahooProvider.getYahooSession().cancelRunningFileTransfer(id);
-    }
-
-    /**
-     * Returns the number of bytes already transfered through this file transfer.
-     *
-     * @return the number of bytes already transfered through this file transfer
-     */
-    @Override
-    public long getTransferedBytes()
-    {
-        return transferedBytes;
-    }
-
-    /**
-     * Uniquie ID that is identifying the FileTransfer
-     * if the request has been accepted.
-     *
-     * @return the id.
-     */
-    public String getID()
-    {
-        return id;
-    }
-
-    /**
-     * The file transfer direction.
-     * @return returns the direction of the file transfer : IN or OUT.
-     */
-    public int getDirection()
-    {
-        return direction;
-    }
-
-    /**
-     * Returns the file that is transfered.
-     *
-     * @return the file
-     */
-    public File getLocalFile()
-    {
-        return file;
-    }
-
-    /**
-     * Returns the contact that we are transfering files with.
-     * @return the contact.
-     */
-    public Contact getContact()
-    {
-        return contact;
-    }
-
-    /**
-     * @param transferedBytes the transferedBytes to set
-     */
-    public void setTransferedBytes(long transferedBytes)
-    {
-        this.transferedBytes = transferedBytes;
-    }
-
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/IncomingFileTransferRequestYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/IncomingFileTransferRequestYahooImpl.java
deleted file mode 100644
index 25561d0..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/IncomingFileTransferRequestYahooImpl.java
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-
-/**
- * Implementation of the incoming file transfer request.
- *
- * @author Damian Minkov
- */
-public class IncomingFileTransferRequestYahooImpl
-    implements IncomingFileTransferRequest
-{
-    private String id;
-
-    /**
-     * The yahoo provider.
-     */
-    private ProtocolProviderServiceYahooImpl yahooProvider;
-
-    private final OperationSetFileTransferYahooImpl fileTransferOpSet;
-
-    private Contact sender;
-
-    private Date date;
-
-    private String fileName;
-
-    private long fileSize;
-
-    public IncomingFileTransferRequestYahooImpl(
-        ProtocolProviderServiceYahooImpl yahooProvider,
-        OperationSetFileTransferYahooImpl fileTransferOpSet,
-        Contact sender,
-        Date date,
-        String fileName,
-        String fileSize,
-        String id)
-    {
-        this.yahooProvider = yahooProvider;
-        this.fileTransferOpSet = fileTransferOpSet;
-        this.sender = sender;
-        this.date = date;
-        this.fileName = fileName;
-
-        try
-        {
-            this.fileSize = Long.valueOf(fileSize);
-        }
-        catch (NumberFormatException e)
-        {}
-
-        this.id = id;
-    }
-
-    /**
-     * Unique ID that is identifying the request and then the FileTransfer
-     * if the request has been accepted.
-     *
-     * @return the id.
-     */
-    public String getID()
-    {
-        return id;
-    }
-
-    /**
-     * Returns a String that represents the name of the file that is being
-     * received.
-     * If there is no name, returns null.
-     * @return a String that represents the name of the file
-     */
-    public String getFileName()
-    {
-        return fileName;
-    }
-
-    /**
-     * Returns a String that represents the description of the file that is
-     * being received.
-     * If there is no description available, returns null.
-     *
-     * @return a String that represents the description of the file
-     */
-    public String getFileDescription()
-    {
-        return "";
-    }
-
-    /**
-     * Returns a long that represents the size of the file that is being
-     * received.
-     * If there is no file size available, returns null.
-     *
-     * @return a long that represents the size of the file
-     */
-    public long getFileSize()
-    {
-        return fileSize;
-    }
-
-    /**
-     * Returns a String that represents the name of the sender of the file
-     * being received.
-     * If there is no sender name available, returns null.
-     *
-     * @return a String that represents the name of the sender
-     */
-    public Contact getSender()
-    {
-        return sender;
-    }
-
-    /**
-     * Function called to accept and receive the file.
-     *
-     * @param file the file to accept
-     * @return the <tt>FileTransfer</tt> object managing the transfer
-     */
-    public FileTransfer acceptFile(File file)
-    {
-        AbstractFileTransfer incomingTransfer = null;
-
-        incomingTransfer =
-            new FileTransferImpl(yahooProvider,
-                id, sender, file, FileTransfer.IN);
-
-        yahooProvider.getYahooSession().fileTransferAccept(id, file);
-
-        FileTransferCreatedEvent event
-            = new FileTransferCreatedEvent(incomingTransfer, new Date());
-
-        fileTransferOpSet.fireFileTransferCreated(event);
-
-        incomingTransfer.fireStatusChangeEvent(
-            FileTransferStatusChangeEvent.PREPARING);
-
-        return incomingTransfer;
-    }
-
-    /**
-     * Function called to refuse the file.
-     */
-    public void rejectFile()
-    {
-        yahooProvider.getYahooSession().fileTransferReject(id);
-
-        fileTransferOpSet.fireFileTransferRequestRejected(
-            new FileTransferRequestEvent(
-                fileTransferOpSet, this, this.getDate()));
-    }
-
-    /**
-     * @return the date
-     */
-    public Date getDate()
-    {
-        return date;
-    }
-
-    /**
-     * Returns the thumbnail contained in this request.
-     *
-     * @return the thumbnail contained in this request
-     */
-    public byte[] getThumbnail()
-    {
-        return null;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/MessageYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/MessageYahooImpl.java
deleted file mode 100644
index e35a3c1..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/MessageYahooImpl.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * A simple implementation of the <tt>Message</tt> interface. Right now the
- * message only supports test contents and no binary data.
- *
- * @author Damian Minkov
- * @author Lubomir Marinov
- */
-public class MessageYahooImpl
-    extends AbstractMessage
-{
-
-    /**
-     * Creates an instance of this Message with the specified parameters.
-     *
-     * @param content the text content of the message.
-     * @param contentType a MIME string indicating the content type of the
-     *            <tt>content</tt> String.
-     * @param contentEncoding a MIME String indicating the content encoding of
-     *            the <tt>content</tt> String.
-     * @param subject the subject of the message or null for empty.
-     */
-    public MessageYahooImpl(String content, String contentType,
-        String contentEncoding, String subject)
-    {
-        super(content, contentType, contentEncoding, subject);
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetAdHocMultiUserChatYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetAdHocMultiUserChatYahooImpl.java
deleted file mode 100644
index dd5f73f..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetAdHocMultiUserChatYahooImpl.java
+++ /dev/null
@@ -1,714 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-import ymsg.network.event.*;
-
-/**
- * A Yahoo implementation of the ad-hoc multi user chat operation set.
- *
- * @author Rupert Burchardi
- * @author Valentin Martinet
- * @author Yana Stamcheva
- */
-public class OperationSetAdHocMultiUserChatYahooImpl
-implements OperationSetAdHocMultiUserChat
-{
-    private static final Logger logger =
-        Logger.getLogger(OperationSetAdHocMultiUserChatYahooImpl.class);
-
-    /**
-     * A list of listeners subscribed for invitations multi user chat events.
-     */
-    private final List<AdHocChatRoomInvitationListener> invitationListeners
-    = new Vector<AdHocChatRoomInvitationListener>();
-
-    /**
-     * A list of listeners subscribed for events indicating rejection of a multi
-     * user chat invitation sent by us.
-     */
-    private final List<AdHocChatRoomInvitationRejectionListener>
-    invitationRejectionListeners
-    = new Vector<AdHocChatRoomInvitationRejectionListener>();
-
-    /**
-     * Listeners that will be notified of changes in our status in the room such
-     * as us being kicked, banned, or granted admin permissions.
-     */
-    private final List<LocalUserAdHocChatRoomPresenceListener> presenceListeners
-    = new Vector<LocalUserAdHocChatRoomPresenceListener>();
-
-    /**
-     * A list of the rooms that are currently open by this account.
-     */
-    private final Hashtable<String, AdHocChatRoomYahooImpl> chatRoomCache
-    = new Hashtable<String, AdHocChatRoomYahooImpl>();
-
-    /**
-     * The currently valid Yahoo protocol provider service implementation.
-     */
-    private final ProtocolProviderServiceYahooImpl yahooProvider;
-
-    /**
-     * The operation set for the basic instant messaging, provides some message
-     * format functions.
-     */
-    private final OperationSetBasicInstantMessagingYahooImpl opSetBasic;
-
-    /**
-     * Instantiates the user operation set with a currently valid instance of
-     * the Yahoo protocol provider.
-     *
-     * @param yahooProvider a currently valid instance of
-     *            ProtocolProviderServiceYahooImpl.
-     */
-    OperationSetAdHocMultiUserChatYahooImpl(
-        ProtocolProviderServiceYahooImpl yahooProvider)
-    {
-        this.yahooProvider = yahooProvider;
-
-        yahooProvider
-        .addRegistrationStateChangeListener(new RegistrationStateListener());
-
-        opSetBasic =
-            (OperationSetBasicInstantMessagingYahooImpl) yahooProvider
-            .getOperationSet(OperationSetBasicInstantMessaging.class);
-    }
-
-    /**
-     * Adds a listener to invitation notifications.
-     *
-     * @param listener An invitation listener.
-     */
-    public void addInvitationListener(AdHocChatRoomInvitationListener listener)
-    {
-        synchronized (invitationListeners)
-        {
-            if (!invitationListeners.contains(listener))
-                invitationListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes a listener that was being notified of changes in our status in a
-     * room such as us being kicked, banned or dropped.
-     *
-     * @param listener the <tt>LocalUserAdHocChatRoomPresenceListener</tt>.
-     */
-    public void removeInvitationListener(
-        AdHocChatRoomInvitationListener listener)
-    {
-        synchronized (invitationListeners)
-        {
-            invitationListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Subscribes <tt>listener</tt> so that it would receive events indicating
-     * rejection of a multi user chat invitation that we've sent earlier.
-     *
-     * @param listener the listener that we'll subscribe for invitation
-     *            rejection events.
-     */
-
-    public void addInvitationRejectionListener(
-        AdHocChatRoomInvitationRejectionListener listener)
-    {
-        synchronized (invitationRejectionListeners)
-        {
-            if (!invitationRejectionListeners.contains(listener))
-                invitationRejectionListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes <tt>listener</tt> from the list of invitation listeners
-     * registered to receive invitation rejection events.
-     *
-     * @param listener the invitation listener to remove.
-     */
-    public void removeInvitationRejectionListener(
-        AdHocChatRoomInvitationRejectionListener listener)
-    {
-        synchronized (invitationRejectionListeners)
-        {
-            invitationRejectionListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Adds a listener that will be notified of changes in our status in a chat
-     * room such as us being kicked, banned or dropped.
-     *
-     * @param listener the <tt>LocalUserAdHocChatRoomPresenceListener</tt>.
-     */
-    public void addPresenceListener(
-        LocalUserAdHocChatRoomPresenceListener listener)
-    {
-        synchronized (presenceListeners)
-        {
-            if (!presenceListeners.contains(listener))
-                presenceListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes a listener that was being notified of changes in our status in a
-     * room such as us being kicked, banned or dropped.
-     *
-     * @param listener the <tt>LocalUserChatRoomPresenceListener</tt>.
-     */
-    public void removePresenceListener(
-        LocalUserAdHocChatRoomPresenceListener listener)
-    {
-        synchronized (presenceListeners)
-        {
-            presenceListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Creates a room with the named <tt>roomName</tt> and according to the
-     * specified <tt>roomProperties</tt> on the server that this protocol
-     * provider is currently connected to. Note the roomProperties also contain
-     * users that we like to invite to the chatRoom, this is required in the
-     * yahoo protocol.
-     *
-     * @param roomName the name of the <tt>AdHocChatRoom</tt> to create.
-     * @param roomProperties properties specifying how the room should be
-     *            created.
-     *
-     * @throws OperationFailedException if the room couldn't be created for some
-     *             reason (e.g. room already exists; user already joined to an
-     *             existent room or user has no permissions to create a chat
-     *             room).
-     *
-     * @return ChatRoom the chat room that we've just created.
-     */
-    public AdHocChatRoom createAdHocChatRoom(String roomName,
-        Map<String, Object> roomProperties)
-    throws  OperationFailedException
-    {
-        return createAdHocChatRoom(roomName, (String[]) null, "");
-    }
-
-    /**
-     * Creates an ad-hoc room with the named <tt>adHocRoomName</tt> and in
-     * including to the specified <tt>contacts</tt>. When the method returns the
-     * ad-hoc room the local user will have joined it.
-     *
-     * @return the ad-hoc room that has been just created
-     * @param adHocRoomName the name of the room to be created
-     * @param contacts the list of contacts ID
-     * @param reason the reason for contacts' invitation
-     * @throws OperationFailedException if the room couldn't be created for
-     * some reason
-     */
-    public AdHocChatRoom createAdHocChatRoom(   String adHocRoomName,
-        List<String> contacts,
-        String reason)
-    throws OperationFailedException
-    {
-        String[] contactsToInvite = new String[contacts.size()];
-        for(int i=0; i<contacts.size(); i++)
-        {
-            contactsToInvite[i] = contacts.get(i);
-        }
-        return createAdHocChatRoom(
-            adHocRoomName, contactsToInvite, reason);
-    }
-
-    /**
-     * Creates an ad-hoc room with the named <tt>adHocRoomName</tt> and in
-     * including to the specified <tt>contacts</tt>. When the method returns the
-     * ad-hoc room the local user will have joined it.
-     *
-     * @param roomName name of the chatroom
-     * @param invitedContacts contacts to be invited to this room
-     * @param reason reason of this invitation
-     * @return AdHocChatRoom the ad-hoc room that has been just created
-     * @throws OperationFailedException
-     */
-    private AdHocChatRoom createAdHocChatRoom(
-        String roomName,
-        String[] invitedContacts,
-        String reason)
-    throws OperationFailedException
-    {
-        if (invitedContacts == null)
-            invitedContacts = new String[0];
-
-        AdHocChatRoom chatRoom = null;
-
-        try
-        {
-            YahooConference conference =
-                yahooProvider.getYahooSession().createConference(
-                    invitedContacts, // users invited to this conference
-                    reason, // invite message / topic
-                    yahooProvider.getYahooSession().getLoginIdentity());
-
-            chatRoom = createLocalChatRoomInstance(conference);
-        }
-        catch (Exception e)
-        {
-            String errorMessage
-            = "Failed to create chat room with name: " + roomName;
-
-            if (logger.isDebugEnabled())
-                logger.debug(errorMessage, e);
-            throw new OperationFailedException(errorMessage,
-                OperationFailedException.CHAT_ROOM_NOT_JOINED, e);
-        }
-        chatRoom.join();
-        return chatRoom;
-    }
-
-    /**
-     * Creates a <tt>AdHocChatRoom</tt> instance from the specified Yahoo
-     * conference.
-     *
-     * @param yahooConference The chat room model from the yahoo lib.
-     *
-     * @return AdHocChatRoom the chat room that we've just created.
-     */
-    private AdHocChatRoomYahooImpl createLocalChatRoomInstance(
-        YahooConference yahooConference)
-    {
-        synchronized (chatRoomCache)
-        {
-            AdHocChatRoomYahooImpl newChatRoom
-            = new AdHocChatRoomYahooImpl(yahooConference, yahooProvider);
-
-            chatRoomCache.put(yahooConference.getName(), newChatRoom);
-
-            return newChatRoom;
-        }
-    }
-
-    /**
-     * Creates a <tt>AdHocChatRoom</tt> instance (where the inviter is
-     * represented by inviterID parameter) from the specified Yahoo conference.
-     *
-     * @param yahooConference The chat room model from the yahoo lib.
-     * @param inviterID inviter's Yahoo ID which has to be added as room member
-     *
-     * @return AdHocChatRoom the chat room that we've just created.
-     */
-    private AdHocChatRoomYahooImpl createLocalChatRoomInstance(
-        YahooConference yahooConference, String inviterID)
-    {
-        synchronized (chatRoomCache)
-        {
-            AdHocChatRoomYahooImpl newChatRoom
-            = new AdHocChatRoomYahooImpl(yahooConference, yahooProvider);
-
-            OperationSetPersistentPresenceYahooImpl opSetPresence  =
-                (OperationSetPersistentPresenceYahooImpl) yahooProvider
-                .getOperationSet(OperationSetPersistentPresence.class);
-
-            newChatRoom.addChatRoomParticipant(
-                opSetPresence.findContactByID(inviterID));
-            chatRoomCache.put(yahooConference.getName(), newChatRoom);
-
-            return newChatRoom;
-        }
-    }
-
-    /**
-     * Returns the <tt>AdHocChatRoomYahooImpl</tt> corresponding to the given
-     * <tt>conference</tt> if such exists, otherwise returns null.
-     *
-     * @param conference the <tt>YahooConference</tt>, for which we're searching
-     * correspondence
-     * @return the <tt>AdHocChatRoomYahooImpl</tt> corresponding to the given
-     * <tt>conference</tt> if such exists, otherwise returns null
-     */
-    private AdHocChatRoomYahooImpl getLocalChatRoomInstance(
-        YahooConference conference)
-    {
-        synchronized (chatRoomCache)
-        {
-            for (AdHocChatRoomYahooImpl chatRoom : chatRoomCache.values())
-            {
-                if (chatRoom.getYahooConference().equals(conference))
-                    return chatRoom;
-            }
-        }
-
-        return null;
-    }
-
-    /**
-     * Informs the sender of an invitation that we decline their invitation.
-     *
-     * @param invitation the connection to use for sending the rejection.
-     * @param rejectReason the reason to reject the given invitation
-     */
-    public void rejectInvitation(AdHocChatRoomInvitation invitation,
-        String rejectReason)
-    {
-        AdHocChatRoomYahooImpl chatRoom =
-            (AdHocChatRoomYahooImpl) invitation.getTargetAdHocChatRoom();
-
-        try
-        {
-            yahooProvider.getYahooSession().declineConferenceInvite(
-                chatRoom.getYahooConference(), rejectReason);
-        }
-        catch (IOException e)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Failed to reject Invitation: " + e);
-        }
-    }
-
-    /**
-     * Delivers a <tt>AdHocChatRoomInvitationReceivedEvent</tt> to all
-     * registered <tt>AdHocChatRoomInvitationListener</tt>s.
-     *
-     * @param targetChatRoom the room that invitation refers to
-     * @param inviter the inviter that sent the invitation
-     * @param reason the reason why the inviter sent the invitation
-     */
-    public void fireInvitationEvent(AdHocChatRoom targetChatRoom,
-        String inviter, String reason)
-    {
-        AdHocChatRoomInvitationYahooImpl invitation =
-            new AdHocChatRoomInvitationYahooImpl(targetChatRoom, inviter,
-                reason);
-
-        AdHocChatRoomInvitationReceivedEvent evt =
-            new AdHocChatRoomInvitationReceivedEvent(this, invitation,
-                new Date(System.currentTimeMillis()));
-
-        Iterable<AdHocChatRoomInvitationListener> listeners;
-        synchronized (invitationListeners)
-        {
-            listeners
-            = new ArrayList<AdHocChatRoomInvitationListener>(
-                invitationListeners);
-        }
-
-        for (AdHocChatRoomInvitationListener listener : listeners)
-            listener.invitationReceived(evt);
-    }
-
-    /**
-     * Delivers a <tt>AdHocChatRoomInvitationRejectedEvent</tt> to all
-     * registered <tt>AdHocChatRoomInvitationRejectionListener</tt>s.
-     *
-     * @param sourceChatRoom the room that invitation refers to
-     * @param invitee the name of the invitee that rejected the invitation
-     * @param reason the reason of the rejection
-     */
-    public void fireInvitationRejectedEvent(AdHocChatRoom sourceChatRoom,
-        String invitee, String reason)
-    {
-        AdHocChatRoomInvitationRejectedEvent evt =
-            new AdHocChatRoomInvitationRejectedEvent(
-                this, sourceChatRoom, invitee,
-                reason, new Date(System.currentTimeMillis()));
-
-        Iterable<AdHocChatRoomInvitationRejectionListener> listeners;
-        synchronized (invitationRejectionListeners)
-        {
-            listeners
-            = new ArrayList<AdHocChatRoomInvitationRejectionListener>(
-                invitationRejectionListeners);
-        }
-
-        for (AdHocChatRoomInvitationRejectionListener listener : listeners)
-            listener.invitationRejected(evt);
-    }
-
-    /**
-     * Delivers a <tt>LocalUserAdHocChatRoomPresenceChangeEvent</tt> to all
-     * registered <tt>LocalUserAdHocChatRoomPresenceListener</tt>s.
-     *
-     * @param chatRoom the <tt>ChatRoom</tt> which has been joined, left, etc.
-     * @param eventType the type of this event; one of LOCAL_USER_JOINED,
-     *            LOCAL_USER_LEFT, etc.
-     * @param reason the reason
-     */
-    public void fireLocalUserPresenceEvent(AdHocChatRoom chatRoom,
-        String eventType, String reason)
-    {
-        LocalUserAdHocChatRoomPresenceChangeEvent evt =
-            new LocalUserAdHocChatRoomPresenceChangeEvent(
-                this, chatRoom, eventType,
-                reason);
-
-        Iterable<LocalUserAdHocChatRoomPresenceListener> listeners;
-        synchronized (presenceListeners)
-        {
-            listeners =
-                new ArrayList<LocalUserAdHocChatRoomPresenceListener>(
-                    presenceListeners);
-        }
-
-        for (LocalUserAdHocChatRoomPresenceListener listener : listeners)
-            listener.localUserAdHocPresenceChanged(evt);
-    }
-
-    /**
-     * Create a Message instance for sending arbitrary MIME-encoding content.
-     *
-     * @param content content value
-     * @param contentType the MIME-type for <tt>content</tt>
-     * @param contentEncoding encoding used for <tt>content</tt>
-     * @param subject a <tt>String</tt> subject or <tt>null</tt> for now
-     *            subject.
-     * @return the newly created message.
-     * @throws UnsupportedEncodingException missing utf-8 in platform we use.
-     */
-    private Message createMessage(byte[] content, String contentType,
-        String contentEncoding, String subject)
-        throws UnsupportedEncodingException
-    {
-        return new MessageYahooImpl(new String(content, "UTF-8"), contentType,
-            contentEncoding, subject);
-    }
-
-    /**
-     * Creates a message by a given message text.
-     *
-     * @param messageText The message text.
-     * @return the newly created message.
-     */
-    public Message createMessage(String messageText)
-    {
-        return new MessageYahooImpl(messageText,
-            OperationSetBasicInstantMessaging.DEFAULT_MIME_TYPE,
-            OperationSetBasicInstantMessaging.DEFAULT_MIME_ENCODING, null);
-    }
-
-    /**
-     * Our listener that will tell us when we're registered to yahoo network.
-     *
-     */
-    private class RegistrationStateListener
-    implements RegistrationStateChangeListener
-    {
-        /**
-         * The method is called by a ProtocolProvider implementation whenever a
-         * change in the registration state of the corresponding provider had
-         * occurred.
-         *
-         * @param evt ProviderStatusChangeEvent the event describing the status
-         *            change.
-         */
-        public void registrationStateChanged(RegistrationStateChangeEvent evt)
-        {
-            if (evt.getNewState() == RegistrationState.REGISTERED)
-            {
-                yahooProvider.getYahooSession().addSessionListener(
-                    new YahooMessageListener());
-            }
-        }
-    }
-
-    /**
-     * Our group chat message listener, it extends the SessionAdapter from the
-     * the Yahoo library.
-     *
-     */
-    private class YahooMessageListener
-    extends SessionAdapter
-    {
-
-        @Override
-        public void conferenceInviteDeclinedReceived(SessionConferenceEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Group Chat invite declined received. "
-                + ev.toString());
-            try
-            {
-                AdHocChatRoom chatRoom = getLocalChatRoomInstance(ev.getRoom());
-
-                fireInvitationRejectedEvent(chatRoom, ev.getFrom(), ev
-                    .getMessage());
-            }
-            catch (Exception e)
-            {
-                if (logger.isDebugEnabled())
-                    logger.debug("Error: " + e);
-            }
-        }
-
-        @Override
-        public void conferenceInviteReceived(SessionConferenceEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Conference Invite Received: " + ev.toString());
-
-            try
-            {
-                AdHocChatRoom chatRoom = getLocalChatRoomInstance(ev.getRoom());
-
-                if (chatRoom == null)
-                {
-                    chatRoom =
-                        createLocalChatRoomInstance(ev.getRoom(), ev.getFrom());
-
-                    fireInvitationEvent(
-                        chatRoom, ev.getFrom(), ev.getMessage());
-                }
-
-            }
-            catch (Exception e)
-            {
-                if (logger.isDebugEnabled())
-                    logger.debug("Error: " + e);
-            }
-        }
-
-        @Override
-        public void conferenceLogoffReceived(SessionConferenceEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Conference Logoff Received: " + ev.toString());
-
-            try
-            {
-                AdHocChatRoomYahooImpl chatRoom
-                = getLocalChatRoomInstance(ev.getRoom());
-
-                if (chatRoom != null)
-                {
-                    Contact participant =
-                        chatRoom.findParticipantForAddress(ev.getFrom());
-
-                    chatRoom.removeChatRoomParticipant(participant);
-                }
-            }
-            catch (Exception e)
-            {
-                logger
-                .debug("Failed to remove a user from the chat room. " + e);
-            }
-        }
-
-        @Override
-        public void conferenceLogonReceived(SessionConferenceEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Conference Logon Received: " + ev.toString());
-
-            try
-            {
-                AdHocChatRoomYahooImpl chatRoom
-                = getLocalChatRoomInstance(ev.getRoom());
-
-                if (chatRoom != null)
-                {
-                    OperationSetPersistentPresenceYahooImpl presenceOpSet =
-                        (OperationSetPersistentPresenceYahooImpl) chatRoom
-                        .getParentProvider().getOperationSet(
-                            OperationSetPersistentPresence.class);
-
-                    Contact participant =
-                        presenceOpSet.findContactByID(ev.getFrom());
-
-                    chatRoom.addChatRoomParticipant(participant);
-                }
-            }
-            catch (Exception e)
-            {
-                if (logger.isDebugEnabled())
-                    logger.debug("Failed to add a user to the chat room. " + e);
-            }
-        }
-
-        @Override
-        public void conferenceMessageReceived(SessionConferenceEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Conference Message Received: " + ev.toString());
-
-            try
-            {
-                String formattedMessage = ev.getMessage();
-                if (logger.isDebugEnabled())
-                    logger.debug("original message received : " + formattedMessage);
-
-                formattedMessage = opSetBasic.decodeMessage(formattedMessage);
-                if (logger.isDebugEnabled())
-                    logger.debug("formatted Message : " + formattedMessage);
-                // As no indications in the protocol is it html or not. No harm
-                // to set all messages html - doesn't affect the appearance of
-                // the gui
-
-                Message newMessage =
-                    createMessage(
-                        formattedMessage.getBytes("UTF-8"),
-                        OperationSetBasicInstantMessaging.HTML_MIME_TYPE,
-                        OperationSetBasicInstantMessaging.DEFAULT_MIME_ENCODING,
-                        null);
-
-                AdHocChatRoomYahooImpl chatRoom =
-                    getLocalChatRoomInstance(ev.getRoom());
-
-                if (chatRoom != null)
-                {
-                    Contact member =
-                        chatRoom.findParticipantForAddress(ev.getFrom());
-
-                    AdHocChatRoomMessageReceivedEvent msgReceivedEvent =
-                        new AdHocChatRoomMessageReceivedEvent(
-                            chatRoom,
-                            member,
-                            new Date(),
-                            newMessage,
-                            AdHocChatRoomMessageReceivedEvent
-                            .CONVERSATION_MESSAGE_RECEIVED);
-
-                    chatRoom.fireMessageEvent(msgReceivedEvent);
-                }
-            }
-            catch (Exception e)
-            {
-                logger
-                .debug("Error while receiving a multi user chat message: "
-                    + e);
-            }
-
-        }
-
-        @Override
-        public void connectionClosed(SessionEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Connection Closed: " + ev.toString());
-        }
-    }
-
-    public List<AdHocChatRoom> getAdHocChatRooms()
-    {
-        return new ArrayList<AdHocChatRoom>(chatRoomCache.values());
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetBasicInstantMessagingYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetBasicInstantMessagingYahooImpl.java
deleted file mode 100644
index 84059de..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetBasicInstantMessagingYahooImpl.java
+++ /dev/null
@@ -1,649 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-import java.util.regex.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.event.*;
-import ymsg.support.*;
-
-/**
- * A straightforward implementation of the basic instant messaging operation
- * set.
- *
- * @author Damian Minkov
- * @author Symphorien Wanko
- * @author Keio Kraaner
- */
-public class OperationSetBasicInstantMessagingYahooImpl
-    extends AbstractOperationSetBasicInstantMessaging
-    implements OperationSetInstantMessageFiltering
-{
-    /**
-     * Logger for this class
-     */
-    private static final Logger logger =
-        Logger.getLogger(OperationSetBasicInstantMessagingYahooImpl.class);
-
-    /**
-     * Yahoo has limit of message length. If exceeded
-     * message is not delivered and no notification is received for that.
-     */
-    private static final int MAX_MESSAGE_LENGTH = 800; // 949
-
-    /**
-     * A regexp that is used to escape some chars in messages.
-     */
-    private static final Pattern MESSAGE_CHARS_ESCAPE = Pattern.compile("([.()^&$*|])");
-
-    /**
-     * A list of filters registered for message events.
-     */
-    private final List<EventFilter> eventFilters = new ArrayList<EventFilter>();
-
-    /**
-     * The provider that created us.
-     */
-    private ProtocolProviderServiceYahooImpl yahooProvider = null;
-
-    /**
-     * Message decoder allows to convert Yahoo formated messages, which can
-     * contains some specials characters, to HTML or to plain text.
-     */
-     private final MessageDecoder messageDecoder = new MessageDecoder();
-
-    /**
-     * A reference to the persistent presence operation set that we use
-     * to match incoming messages to <tt>Contact</tt>s and vice versa.
-     */
-    private OperationSetPersistentPresenceYahooImpl opSetPersPresence = null;
-    private static final Pattern FONT_SIZE_0_PATTERN = Pattern.compile("(<font) (.*) size=\"0\">");
-    private static final Pattern FONT_SIZE_INT_PATTERN = Pattern.compile("(<font) (.*) size=\"(\\d+)\">");
-
-    /**
-     * Creates an instance of this operation set.
-     * @param provider a ref to the <tt>ProtocolProviderServiceImpl</tt>
-     * that created us and that we'll use for retrieving the underlying aim
-     * connection.
-     */
-    OperationSetBasicInstantMessagingYahooImpl(
-        ProtocolProviderServiceYahooImpl provider)
-    {
-        this.yahooProvider = provider;
-        provider.addRegistrationStateChangeListener(
-            new RegistrationStateListener());
-    }
-
-    /**
-     * Determines wheter the protocol provider (or the protocol itself) support
-     * sending and receiving offline messages. Most often this method would
-     * return true for protocols that support offline messages and false for
-     * those that don't. It is however possible for a protocol to support these
-     * messages and yet have a particular account that does not (i.e. feature
-     * not enabled on the protocol server). In cases like this it is possible
-     * for this method to return true even when offline messaging is not
-     * supported, and then have the sendMessage method throw an
-     * OperationFailedException with code - OFFLINE_MESSAGES_NOT_SUPPORTED.
-     *
-     * @return <tt>true</tt> if the protocol supports offline messages and
-     * <tt>false</tt> otherwise.
-     */
-    public boolean isOfflineMessagingSupported()
-    {
-        return true;
-    }
-
-    /**
-     * Determines wheter the protocol supports the supplied content type
-     *
-     * @param contentType the type we want to check
-     * @return <tt>true</tt> if the protocol supports it and
-     * <tt>false</tt> otherwise.
-     */
-    public boolean isContentTypeSupported(String contentType)
-    {
-        if(contentType.equals(DEFAULT_MIME_TYPE) ||
-           contentType.equals(HTML_MIME_TYPE))
-            return true;
-        else
-           return false;
-    }
-
-    @Override
-    public Message createMessage(String content, String contentType,
-        String encoding, String subject)
-    {
-        return new MessageYahooImpl(content, contentType, encoding, subject);
-    }
-
-    /**
-     * Sends the <tt>message</tt> to the destination indicated by the
-     * <tt>to</tt> contact.
-     *
-     * @param to the <tt>Contact</tt> to send <tt>message</tt> to
-     * @param message the <tt>Message</tt> to send.
-     * @throws IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     * @throws IllegalArgumentException if <tt>to</tt> is not an
-     * instance of ContactImpl.
-     */
-    public void sendInstantMessage(Contact to, Message message)
-        throws IllegalStateException, IllegalArgumentException
-    {
-        assertConnected();
-
-        if( !(to instanceof ContactYahooImpl) )
-           throw new IllegalArgumentException(
-               "The specified contact is not a Yahoo contact."
-               + to);
-
-        try
-        {
-            String toUserID = ((ContactYahooImpl) to).getID();
-
-            MessageDeliveredEvent msgDeliveryPendingEvt =
-                new MessageDeliveredEvent(message, to, new Date());
-
-            MessageDeliveredEvent[] msgDeliveryPendingEvts = messageDeliveryPendingTransform(msgDeliveryPendingEvt);
-
-            if (msgDeliveryPendingEvts == null || msgDeliveryPendingEvts.length == 0)
-                return;
-
-            for (MessageDeliveredEvent event : msgDeliveryPendingEvts)
-            {
-                byte[] msgBytesToBeSent =
-                    event.getSourceMessage().getContent().trim()
-                        .getBytes("UTF-8");
-
-                // split the message in parts with max allowed length
-                // and send them all
-                do
-                {
-                    if (msgBytesToBeSent.length > MAX_MESSAGE_LENGTH)
-                    {
-                        byte[] tmp1 = new byte[MAX_MESSAGE_LENGTH];
-                        System.arraycopy(msgBytesToBeSent, 0, tmp1, 0,
-                            MAX_MESSAGE_LENGTH);
-
-                        byte[] tmp2 =
-                            new byte[msgBytesToBeSent.length
-                                - MAX_MESSAGE_LENGTH];
-                        System.arraycopy(msgBytesToBeSent, MAX_MESSAGE_LENGTH,
-                            tmp2, 0, tmp2.length);
-
-                        msgBytesToBeSent = tmp2;
-
-                        yahooProvider.getYahooSession().sendMessage(toUserID,
-                            new String(tmp1, "UTF-8"));
-                    }
-                    else
-                    {
-                        yahooProvider.getYahooSession().sendMessage(toUserID,
-                            new String(msgBytesToBeSent, "UTF-8"));
-                    }
-
-                    MessageDeliveredEvent msgDeliveredEvt =
-                        new MessageDeliveredEvent(message, to, new Date());
-
-                    if (msgDeliveredEvt != null)
-                        fireMessageEvent(msgDeliveredEvt);
-                }
-                while (msgBytesToBeSent.length > MAX_MESSAGE_LENGTH);
-            }
-        }
-        catch (IOException ex)
-        {
-            logger.fatal("Cannot Send Message! " + ex.getMessage());
-            MessageDeliveryFailedEvent evt =
-                new MessageDeliveryFailedEvent(
-                    message,
-                    to,
-                    MessageDeliveryFailedEvent.NETWORK_FAILURE);
-
-            if (evt != null)
-                fireMessageEvent(evt);
-        }
-    }
-
-    /**
-     * Utility method throwing an exception if the stack is not properly
-     * initialized.
-     * @throws IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     */
-    private void assertConnected() throws IllegalStateException
-    {
-        if (yahooProvider == null)
-            throw new IllegalStateException(
-                "The provider must be non-null and signed on the "
-                +"service before being able to communicate.");
-        if (!yahooProvider.isRegistered())
-            throw new IllegalStateException(
-                "The provider must be signed on the service before "
-                +"being able to communicate.");
-    }
-
-    /**
-     * Our listener that will tell us when we're registered to
-     */
-    private class RegistrationStateListener
-        implements RegistrationStateChangeListener
-    {
-        /**
-         * The method is called by a ProtocolProvider implementation whenver
-         * a change in the registration state of the corresponding provider had
-         * occurred.
-         * @param evt ProviderStatusChangeEvent the event describing the status
-         * change.
-         */
-        public void registrationStateChanged(RegistrationStateChangeEvent evt)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("The provider changed state from: "
-                         + evt.getOldState()
-                         + " to: " + evt.getNewState());
-
-            if (evt.getNewState() == RegistrationState.REGISTERED)
-            {
-                opSetPersPresence =
-                    (OperationSetPersistentPresenceYahooImpl) yahooProvider
-                        .getOperationSet(OperationSetPersistentPresence.class);
-
-                yahooProvider.getYahooSession().
-                    addSessionListener(new YahooMessageListener());
-            }
-        }
-    }
-
-    /**
-     * Delivers the specified event to all registered message listeners.
-     * @param evt the <tt>EventObject</tt> that we'd like delivered to all
-     * registered message listerners.
-     */
-    @Override
-    protected void fireMessageEvent(EventObject evt)
-    {
-        // check if this event should be filtered out
-        Iterator<EventFilter> filters;
-        synchronized (eventFilters)
-        {
-            filters = new ArrayList<EventFilter>(eventFilters).iterator();
-        }
-        // return if a filter has filtered this event out
-        boolean filtered = false;
-        while (filters.hasNext())
-        {
-            try
-            {
-                if (filters.next().filterEvent(evt))
-                {
-                    filtered = true;
-                }
-            }
-            catch(Exception exc)
-            {
-                logger.error("An exception occurred while filtering an event.",
-                             exc);
-            }
-        }
-
-        if (filtered)
-        {
-            if (logger.isTraceEnabled())
-                logger.trace("Message event filtered.");
-            return;
-        }
-
-        super.fireMessageEvent(evt);
-    }
-
-    /**
-     * This class provides methods to listen for yahoo events which interest us.
-     */
-    private class YahooMessageListener
-        extends SessionAdapter
-    {
-        /**
-         * Overrides <tt>messageReceived</tt> from <tt>SessionAdapter</tt>,
-         * called when we receive a new intant message.
-         *
-         * @param ev Event with information on the received message
-         */
-        @Override
-        public void messageReceived(SessionEvent ev)
-        {
-            handleNewMessage(ev);
-        }
-
-        /**
-         * Overrides <tt>offlineMessageReceived</tt> from <tt>SessionAdapter</tt>,
-         * called when we receive a message which has been sent to us
-         * when we were offline.
-         *
-         * @param ev Event with information on the received message
-         */
-        @Override
-        public void offlineMessageReceived(SessionEvent ev)
-        {
-            handleNewMessage(ev);
-        }
-
-        /**
-         * Overrides <tt>newMailReceived</tt> from <tt>SessionAdapter</tt>,
-         * called when yahoo alert us that there is a new message in our mailbox.
-         * There is two types of notification, the first one provides only
-         * the number of unread mails and the second gives informations about
-         * a precise new mail. Here, we care about only the second case in which
-         * we should always have the email of the sender of the mail.
-         *
-         * @param ev Event with information on the received email
-         */
-        @Override
-        public void newMailReceived(SessionNewMailEvent ev)
-        {
-            // why, if I provide mail@yahoo.FR when registering my account,
-            // SC later tells me that my email address is mail@yahoo.COM ??
-            // because of this users will always be sent on yahoo.com mail
-            // login page rather than their usual (yahoo.XXX) login page.
-            String myEmail = yahooProvider.getAccountID().getAccountAddress();
-
-            // we don't process incoming email event without source address.
-            // it allows us to avoid some spams
-            if ((ev.getEmailAddress() == null)
-                   || (ev.getEmailAddress().indexOf('@') < 0))
-            {
-                return;
-            }
-
-            String yahooMailLogon = "http://mail."
-                    + myEmail.substring(myEmail.indexOf('@') + 1);
-
-            yahooMailLogon = "&nbsp;&nbsp;&nbsp;&nbsp;<a href=\""
-                    + yahooMailLogon + "\">"
-                    + yahooMailLogon + "</a>";
-
-            // FIXME Escape HTML!
-            String newMail = YahooActivator.getResources().getI18NString(
-                "service.gui.NEW_MAIL",
-                new String[]{ev.getFrom(),
-                             "&lt;" + ev.getEmailAddress() + "&gt;",
-                             ev.getSubject(),
-                             "&nbsp;&nbsp;&nbsp;&nbsp;"+yahooMailLogon}) ;
-
-            Message newMailMessage = new MessageYahooImpl(
-                    newMail,
-                    HTML_MIME_TYPE,
-                    DEFAULT_MIME_ENCODING,
-                    null);
-
-            Contact sourceContact = opSetPersPresence.
-                findContactByID(ev.getEmailAddress());
-
-            if (sourceContact == null)
-            {
-                if (logger.isDebugEnabled())
-                    logger.debug("received a new mail from an unknown contact: "
-                                   + ev.getFrom()
-                                   + " &lt;" + ev.getEmailAddress() + "&gt;");
-                //create the volatile contact
-                sourceContact = opSetPersPresence
-                    .createVolatileContact(ev.getEmailAddress());
-            }
-            MessageReceivedEvent msgReceivedEvt
-                = new MessageReceivedEvent(
-                    newMailMessage, sourceContact, new Date(),
-                    MessageReceivedEvent.SYSTEM_MESSAGE_RECEIVED);
-
-            fireMessageEvent(msgReceivedEvt);
-        }
-
-        /**
-         * Handle incoming message by creating an appropriate Sip Communicator
-         * <tt>Message</tt> and firing a <tt>MessageReceivedEvent</tt>
-         * to interested listeners.
-         *
-         * @param ev The original <tt>SessionEvent</tt> which noticed us
-         * of an incoming message.
-         */
-        private void handleNewMessage(SessionEvent ev)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Message received : " + ev);
-
-            // to keep things simple, we can decodeToText()
-            //String formattedMessage = processLinks(
-            //        messageDecoder.decodeToText(ev.getMessage()));
-
-            String formattedMessage = ev.getMessage();
-            if (logger.isDebugEnabled())
-                logger.debug("original message received : " + formattedMessage);
-
-            formattedMessage = decodeMessage(formattedMessage);
-
-            if (logger.isDebugEnabled())
-                logger.debug("formatted Message : " + formattedMessage);
-            // As no indications in the protocol is it html or not. No harm
-            // to set all messages html - doesn't affect the appearance of the
-            // gui
-            Message newMessage =
-                createMessage(formattedMessage, HTML_MIME_TYPE,
-                    DEFAULT_MIME_ENCODING, null);
-
-            Contact sourceContact = opSetPersPresence.
-                findContactByID(ev.getFrom());
-
-             if(sourceContact == null)
-            {
-                if (logger.isDebugEnabled())
-                    logger.debug("received a message from an unknown contact: "
-                                   + ev.getFrom());
-                //create the volatile contact
-                sourceContact = opSetPersPresence
-                    .createVolatileContact(ev.getFrom());
-            }
-
-             MessageReceivedEvent msgReceivedEvt
-             = new MessageReceivedEvent(
-                 newMessage, sourceContact , new Date());
-
-             // msgReceivedEvt = messageReceivedTransform(msgReceivedEvt);
-
-             if (msgReceivedEvt != null)
-                 fireMessageEvent(msgReceivedEvt);
-        }
-    }
-
-    /**
-     * Decode the received chat message.
-     * If the message contains \u001b the following text is decoded by
-     * the MessageDecoder of yahoo api
-     * Then make http links clickable and fix the font size of html code
-     *
-     * @param message the chat message
-     * @return a decoded message.
-     */
-    String decodeMessage(String message)
-    {
-        message = messageDecoder.decodeToHTML(message);
-        message = processLinks(message);
-        message =
-                FONT_SIZE_0_PATTERN.matcher(message)
-                        .replaceAll("$1 $2 size=\"10\">");
-        message =
-                FONT_SIZE_INT_PATTERN.matcher(message)
-                        .replaceAll("$1 $2 style=\"font-size: $3px;\">");
-        return message;
-    }
-
-    /**
-     * Format links in the given message. Skips all links, which are already in
-     * HTML format and converts all other links.
-     *
-     * @param message The source message string.
-     * @return The message string with properly formatted links.
-     */
-    public String processLinks(String message)
-    {
-        StringBuffer msgBuffer = new StringBuffer();
-
-        // We match two groups of Strings. The first group is the group of any
-        // String. The second group is a well formatted HTML link.
-        Pattern p = Pattern.compile("(.*?)(<a[\\s][^<]*(/>|</a>))",
-                                    Pattern.CASE_INSENSITIVE);
-
-        Matcher m = p.matcher(message);
-
-        int lastMatchIndex = 0;
-        while (m.find())
-        {
-            lastMatchIndex = m.end();
-
-            String matchGroup1 = m.group(1);
-            String matchGroup2 = m.group(2);
-
-            String formattedString = formatLinksToHTML(matchGroup1);
-
-            m.appendReplacement(msgBuffer,
-                replaceSpecialRegExpChars(formattedString) + matchGroup2);
-        }
-
-        String tailString = message.substring(lastMatchIndex);
-
-        String formattedTailString = formatLinksToHTML(tailString);
-
-        msgBuffer.append(formattedTailString);
-
-        return msgBuffer.toString();
-    }
-
-    /**
-     * Replaces some chars that are special in a regular expression.
-     *
-     * @param text The initial text.
-     * @return the formatted text
-     */
-    private static String replaceSpecialRegExpChars(String text)
-    {
-        return MESSAGE_CHARS_ESCAPE.matcher(text).replaceAll("\\\\$1");
-    }
-
-    /**
-     * Goes through the given text and converts all links to HTML links.
-     * <p>
-     * For example all occurrences of http://jitsi.org/ will be
-     * replaced by <a href="http://jitsi.org/">
-     * http://jitsi.org/</a>. The same is true for all strings
-     * starting with "www".
-     *
-     * @param text the text on which the regular expression would be performed
-     * @return the initial text containing only HTML links
-     */
-    private static String formatLinksToHTML(String text)
-    {
-        String wwwURL = "(www\\." + // Matches the "www" string.
-                        "[^/?#<\"'\\s]+" + // Matches at least one char of
-                                           // any type except / ? # < " '
-                                           // and space.
-                        "[\\.]" + // Matches the second point of the link.
-                        "[^?#<\"'\\s]+" +   // Matches at least one char of
-                                            // any type except ? # < " '
-                                            // and space.
-                        "(\\?[^#<\"'\\s]*)?" +
-                        "(#.*)?)";
-
-        String protocolURL
-                =   "([^\"'<>:/?#\\s]+" +   // Matches at least one char of
-                                            // any type except " ' < > : / ? #
-                                            // and space.
-                    "://" + // Matches the :// delimiter in links
-                    "[^/?#<\"'\\s]*" +  // Matches any number of times any char
-                                        // except / ? # < " ' and space.
-                    "[^?#<\"'\\s]*" +   // Matches any number of times any char
-                                        // except ? # < " ' and space.
-                    "(\\?[^#<\"'\\s]*)?" +
-                    "(#.*)?)";
-
-        String url = '(' + wwwURL + '|' + protocolURL + ')';
-
-        Pattern p = Pattern.compile(url, Pattern.CASE_INSENSITIVE);
-
-        Matcher m = p.matcher(text);
-
-        StringBuffer linkBuffer = new StringBuffer();
-
-        while (m.find())
-        {
-            String linkGroup = m.group();
-
-            String replacement;
-            if (linkGroup.startsWith("www"))
-            {
-                replacement = "<A href=\"" + "http://"
-                    + linkGroup + "\">" + linkGroup + "</A>";
-            }
-            else
-            {
-                replacement = "<A href=\"" + linkGroup
-                    + "\">" + linkGroup + "</A>";
-            }
-
-            m.appendReplacement(linkBuffer,
-                replaceSpecialRegExpChars(replacement));
-        }
-
-        m.appendTail(linkBuffer);
-
-        return linkBuffer.toString();
-    }
-
-    /**
-     * Registers an <tt>EventFilter</tt> with this operation set so that
-     * events, that do not need processing, are filtered out.
-     *
-     * @param filter the <tt>EventFilter</tt> to register.
-     */
-    public void addEventFilter(EventFilter filter)
-    {
-        synchronized(eventFilters)
-        {
-            if(!eventFilters.contains(filter))
-            {
-                eventFilters.add(filter);
-            }
-        }
-    }
-
-    /**
-     * Unregisteres an <tt>EventFilter</tt> so that it won't check any more
-     * if an event should be filtered out.
-     *
-     * @param filter the <tt>EventFilter</tt> to unregister.
-     */
-    public void removeEventFilter(EventFilter filter)
-    {
-        synchronized(eventFilters)
-        {
-            eventFilters.remove(filter);
-        }
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetFileTransferYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetFileTransferYahooImpl.java
deleted file mode 100644
index 85f25b1..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetFileTransferYahooImpl.java
+++ /dev/null
@@ -1,466 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.event.*;
-
-/**
- * The Yahoo protocol filetransfer OperationSet.
- *
- * @author Damian Minkov
- */
-public class OperationSetFileTransferYahooImpl
-    implements  OperationSetFileTransfer,
-                SessionFileTransferListener
-{
-    /**
-     * The logger for this class.
-     */
-    private static final Logger logger =
-        Logger.getLogger(OperationSetFileTransferYahooImpl.class);
-
-    /**
-     * The provider that created us.
-     */
-    private final ProtocolProviderServiceYahooImpl yahooProvider;
-
-    /**
-     * A list of listeners registered for file transfer events.
-     */
-    private ArrayList<FileTransferListener> fileTransferListeners
-        = new ArrayList<FileTransferListener>();
-
-    /**
-     * A list of active fileTransfers.
-     */
-    private Hashtable<String, Object> activeFileTransfers
-        = new Hashtable<String, Object>();
-
-    /**
-     * Constructor
-     * @param provider is the provider that created us
-     */
-    public OperationSetFileTransferYahooImpl(
-            ProtocolProviderServiceYahooImpl provider)
-    {
-        this.yahooProvider = provider;
-
-        provider.addRegistrationStateChangeListener(
-            new RegistrationStateListener());
-    }
-
-    /**
-     * Sends a file transfer request to the given <tt>toContact</tt> by
-     * specifying the local and remote file path and the <tt>fromContact</tt>,
-     * sending the file.
-     *
-     * @param toContact the contact that should receive the file
-     * @param file the file to send
-     *
-     * @return the transfer object
-     *
-     * @throws IllegalStateException if the protocol provider is not registered
-     * or connected
-     * @throws IllegalArgumentException if some of the arguments doesn't fit the
-     * protocol requirements
-     */
-    public FileTransfer sendFile(   Contact toContact,
-                                    File file)
-        throws  IllegalStateException,
-                IllegalArgumentException
-    {
-        try
-        {
-            assertConnected();
-
-            if(file.length() > getMaximumFileLength())
-                throw new IllegalArgumentException(
-                    "File length exceeds the allowed one for this protocol");
-
-            ArrayList<String> filesToSend = new ArrayList<String>();
-            filesToSend.add(file.getCanonicalPath());
-            Date sentDate = new Date();
-            String id = yahooProvider.getYahooSession().sendFiles(
-                filesToSend, toContact.getAddress());
-
-            FileTransferImpl ft =
-                new FileTransferImpl(yahooProvider,
-                    id, toContact, file, FileTransfer.OUT);
-
-            // Notify all interested listeners that a file transfer has been
-            // created.
-            FileTransferCreatedEvent event
-                = new FileTransferCreatedEvent(ft, sentDate);
-
-            fireFileTransferCreated(event);
-
-            ft.fireStatusChangeEvent(FileTransferStatusChangeEvent.PREPARING);
-
-            return ft;
-        }
-        catch(IOException e)
-        {
-            logger.error("Cannot send fileTransfer", e);
-            return null;
-        }
-    }
-
-    /**
-     * Sends a file transfer request to the given <tt>toContact</tt> by
-     * specifying the local and remote file path and the <tt>fromContact</tt>,
-     * sending the file.
-     *
-     * @param toContact the contact that should receive the file
-     * @param fromContact the contact sending the file
-     * @param remotePath the remote file path
-     * @param localPath the local file path
-     *
-     * @return the transfer object
-     *
-     * @throws IllegalStateException if the protocol provider is not registered
-     * or connected
-     * @throws IllegalArgumentException if some of the arguments doesn't fit the
-     * protocol requirements
-     */
-    public FileTransfer sendFile(   Contact toContact,
-                                    Contact fromContact,
-                                    String remotePath,
-                                    String localPath)
-        throws  IllegalStateException,
-                IllegalArgumentException
-    {
-        return this.sendFile(toContact, new File(localPath));
-    }
-
-    /**
-     * Adds the given <tt>FileTransferListener</tt> that would listen for
-     * file transfer requests and created file transfers.
-     *
-     * @param listener the <tt>FileTransferListener</tt> to add
-     */
-    public void addFileTransferListener(
-        FileTransferListener listener)
-    {
-        synchronized(fileTransferListeners)
-        {
-            if(!fileTransferListeners.contains(listener))
-            {
-                this.fileTransferListeners.add(listener);
-            }
-        }
-    }
-
-    /**
-     * Removes the given <tt>FileTransferListener</tt> that listens for
-     * file transfer requests and created file transfers.
-     *
-     * @param listener the <tt>FileTransferListener</tt> to remove
-     */
-    public void removeFileTransferListener(
-        FileTransferListener listener)
-    {
-        synchronized(fileTransferListeners)
-        {
-            this.fileTransferListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Utility method throwing an exception if the stack is not properly
-     * initialized.
-     * @throws java.lang.IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     */
-    private void assertConnected()
-        throws  IllegalStateException
-    {
-        if (yahooProvider == null)
-            throw new IllegalStateException(
-                "The provider must be non-null and signed on the "
-                +"service before being able to send a file.");
-        else if (!yahooProvider.isRegistered())
-            throw new IllegalStateException(
-                "The provider must be signed on the service before "
-                +"being able to send a file.");
-    }
-
-    /**
-     * Delivers the file transfer to all registered listeners.
-     *
-     * @param event the <tt>FileTransferEvent</tt> that we'd like delivered to
-     * all registered file transfer listeners.
-     */
-    void fireFileTransferCreated(FileTransferCreatedEvent event)
-    {
-        activeFileTransfers.put(
-            event.getFileTransfer().getID(), event.getFileTransfer());
-
-        Iterator<FileTransferListener> listeners = null;
-        synchronized (fileTransferListeners)
-        {
-            listeners = new ArrayList<FileTransferListener>
-                            (fileTransferListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            FileTransferListener listener = listeners.next();
-            listener.fileTransferCreated(event);
-        }
-    }
-
-    /**
-     * Delivers the specified event to all registered file transfer listeners.
-     *
-     * @param event the <tt>EventObject</tt> that we'd like delivered to all
-     * registered file transfer listeners.
-     */
-    void fireFileTransferRequestRejected(FileTransferRequestEvent event)
-    {
-        Iterator<FileTransferListener> listeners = null;
-        synchronized (fileTransferListeners)
-        {
-            listeners = new ArrayList<FileTransferListener>
-                            (fileTransferListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            FileTransferListener listener = listeners.next();
-
-            listener.fileTransferRequestRejected(event);
-        }
-    }
-
-    /**
-     * Delivers the specified event to all registered file transfer listeners.
-     *
-     * @param event the <tt>EventObject</tt> that we'd like delivered to all
-     * registered file transfer listeners.
-     */
-    private void fireFileTransferRequest(FileTransferRequestEvent event)
-    {
-        Iterator<FileTransferListener> listeners = null;
-        synchronized (fileTransferListeners)
-        {
-            listeners = new ArrayList<FileTransferListener>
-                            (fileTransferListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            FileTransferListener listener = listeners.next();
-
-            listener.fileTransferRequestReceived(event);
-        }
-    }
-
-    /**
-     * Delivers the specified event to all registered file transfer listeners.
-     *
-     * @param event the <tt>EventObject</tt> that we'd like delivered to all
-     * registered file transfer listeners.
-     */
-    void fireFileTransferRequestCanceled(FileTransferRequestEvent event)
-    {
-        Iterator<FileTransferListener> listeners = null;
-        synchronized (fileTransferListeners)
-        {
-            listeners = new ArrayList<FileTransferListener>
-                            (fileTransferListeners).iterator();
-        }
-
-        while (listeners.hasNext())
-        {
-            FileTransferListener listener = listeners.next();
-
-            listener.fileTransferRequestCanceled(event);
-        }
-    }
-
-    private int getStateMapping(int s)
-    {
-        switch(s)
-        {
-            case SessionFileTransferEvent.REFUSED :
-                return FileTransferStatusChangeEvent.REFUSED;
-            case SessionFileTransferEvent.CANCEL :
-                return FileTransferStatusChangeEvent.CANCELED;
-            case SessionFileTransferEvent.FAILED :
-                return FileTransferStatusChangeEvent.FAILED;
-            case SessionFileTransferEvent.IN_PROGRESS :
-                return FileTransferStatusChangeEvent.IN_PROGRESS;
-            case SessionFileTransferEvent.RECEIVED :
-                return FileTransferStatusChangeEvent.COMPLETED;
-            case SessionFileTransferEvent.SENT :
-                return FileTransferStatusChangeEvent.COMPLETED;
-            default: return FileTransferStatusChangeEvent.WAITING;
-        }
-    }
-
-    /**
-     * Starting point for incoming filetransfer.
-     * @param ev
-     */
-    public void fileTransferRequestReceived(SessionFileTransferEvent ev)
-    {
-        OperationSetPersistentPresenceYahooImpl opSetPersPresence
-            = (OperationSetPersistentPresenceYahooImpl)
-                yahooProvider.getOperationSet(
-                    OperationSetPersistentPresence.class);
-
-        Contact sender = opSetPersPresence.findContactByID(ev.getFrom());
-
-        if(sender == null)
-            return;
-
-        Date recvDate = new Date();
-
-        for(int i = 0; i < ev.getFileNames().size(); i++)
-        {
-            String fileName = ev.getFileNames().get(i);
-            String fileSize = ev.getFileSizes().get(i);
-
-            IncomingFileTransferRequest req =
-                new IncomingFileTransferRequestYahooImpl(
-                        yahooProvider, this, sender, recvDate,
-                        fileName, fileSize,
-                        ev.getId());
-
-            activeFileTransfers.put(ev.getId(), req);
-            fireFileTransferRequest(
-                new FileTransferRequestEvent(this, req, recvDate));
-        }
-    }
-
-    /**
-     * Status changed for filetransfer.
-     * @param ev
-     */
-    public void statusChanged(SessionFileTransferEvent ev)
-    {
-        if(ev.getId() == null)
-            return;
-
-        Object ftObj = activeFileTransfers.get(ev.getId());
-
-        if(ftObj == null)
-        {
-            logger.warn("File Transfer or request not found. " + ev.getId() + "/ " + ev.getState());
-            return;
-        }
-
-        int newState = ev.getState();
-
-        if(newState == SessionFileTransferEvent.CANCEL
-            || newState == SessionFileTransferEvent.FAILED
-            || newState == SessionFileTransferEvent.RECEIVED
-            || newState == SessionFileTransferEvent.REFUSED
-            || newState == SessionFileTransferEvent.SENT)
-        {
-            // this is an final state so remove it from active filetransfers
-            activeFileTransfers.remove(ev.getId());
-        }
-
-        if(ftObj instanceof IncomingFileTransferRequest)
-        {
-            if(newState == SessionFileTransferEvent.REFUSED)
-            {
-                IncomingFileTransferRequestYahooImpl req =
-                    (IncomingFileTransferRequestYahooImpl)ftObj;
-                fireFileTransferRequestCanceled(
-                    new FileTransferRequestEvent(this, req, req.getDate()));
-                return;
-            }
-        }
-
-        if(!(ftObj instanceof FileTransferImpl))
-        {
-            logger.warn("File Transfer not found." + ftObj);
-            return;
-        }
-
-        FileTransferImpl ft = (FileTransferImpl)ftObj;
-
-        if( newState == SessionFileTransferEvent.IN_PROGRESS)
-        {
-            // if we start sending progress fire that we are in progress
-            if(ev.getProgress() == 0)
-                ft.fireStatusChangeEvent(
-                    FileTransferStatusChangeEvent.IN_PROGRESS);
-
-            ft.setTransferedBytes(ev.getProgress());
-            ft.fireProgressChangeEvent(
-                System.currentTimeMillis(), ev.getProgress());
-        }
-        else
-            ft.fireStatusChangeEvent(getStateMapping(newState));
-    }
-
-    /**
-     * Returns the maximum file length supported by the protocol in bytes.
-     * Supports up to 256MB.
-     *
-     * @return the file length that is supported.
-     */
-    public long getMaximumFileLength()
-    {
-        return 268435456l;// = 256*1024*1024;
-    }
-
-    /**
-     * Our listener that will tell us when we're registered to
-     */
-    private class RegistrationStateListener
-        implements RegistrationStateChangeListener
-    {
-        /**
-         * The method is called by a ProtocolProvider implementation whenever
-         * a change in the registration state of the corresponding provider had
-         * occurred.
-         * @param evt ProviderStatusChangeEvent the event describing the status
-         * change.
-         */
-        public void registrationStateChanged(RegistrationStateChangeEvent evt)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("The provider changed state from: "
-                         + evt.getOldState()
-                         + " to: " + evt.getNewState());
-
-            if (evt.getNewState() == RegistrationState.REGISTERED)
-            {
-                yahooProvider.getYahooSession().addSessionFileListener(
-                    OperationSetFileTransferYahooImpl.this);
-            }
-            else if (evt.getNewState() == RegistrationState.UNREGISTERED)
-            {
-                YahooSession ys = yahooProvider.getYahooSession();
-                if(ys != null)
-                    ys.removeSessionFileListener(
-                        OperationSetFileTransferYahooImpl.this);
-            }
-        }
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetPersistentPresenceYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetPersistentPresenceYahooImpl.java
deleted file mode 100644
index a99bdb7..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetPersistentPresenceYahooImpl.java
+++ /dev/null
@@ -1,954 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.service.protocol.yahooconstants.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-import ymsg.network.event.*;
-
-/**
- * The Yahoo implementation of a Persistent Presence Operation set. This class
- * manages our own presence status as well as subscriptions for the presence
- * status of our buddies. It also offers methods for retrieving and modifying
- * the buddy contact list and adding listeners for changes in its layout.
- *
- * @author Damian Minkov
- */
-public class OperationSetPersistentPresenceYahooImpl
-    extends AbstractOperationSetPersistentPresence<ProtocolProviderServiceYahooImpl>
-{
-    private static final Logger logger =
-        Logger.getLogger(OperationSetPersistentPresenceYahooImpl.class);
-
-    /**
-     * Contains our current status message. Note that this field would only
-     * be changed once the server has confirmed the new status message and
-     * not immediately upon setting a new one..
-     */
-    private String currentStatusMessage = "";
-
-    /**
-     * The presence status that we were last notified of entering.
-     * The initial one is OFFLINE
-     */
-    private PresenceStatus currentStatus = YahooStatusEnum.OFFLINE;
-
-    /**
-     * Sometimes status changes are received before the contact list is inited
-     * here we store such events so we can show them correctly
-     */
-//    private Hashtable earlyStatusChange = new Hashtable();
-
-    /**
-     * The array list we use when returning from the getSupportedStatusSet()
-     * method.
-     */
-    private static final List<PresenceStatus> supportedPresenceStatusSet = new ArrayList<PresenceStatus>();
-    static{
-        supportedPresenceStatusSet.add(YahooStatusEnum.AVAILABLE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.BE_RIGHT_BACK);
-        supportedPresenceStatusSet.add(YahooStatusEnum.BUSY);
-        supportedPresenceStatusSet.add(YahooStatusEnum.IDLE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.INVISIBLE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.NOT_AT_DESK);
-        supportedPresenceStatusSet.add(YahooStatusEnum.NOT_AT_HOME);
-        supportedPresenceStatusSet.add(YahooStatusEnum.NOT_IN_OFFICE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.OFFLINE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.ON_THE_PHONE);
-        supportedPresenceStatusSet.add(YahooStatusEnum.ON_VACATION);
-        supportedPresenceStatusSet.add(YahooStatusEnum.OUT_TO_LUNCH);
-        supportedPresenceStatusSet.add(YahooStatusEnum.STEPPED_OUT);
-    }
-
-    /**
-     * A map containing bindings between SIP Communicator's yahoo presence status
-     * instances and Yahoo status codes
-     */
-    private static final Map<PresenceStatus, Long> scToYahooModesMappings
-        = new Hashtable<PresenceStatus, Long>();
-    static{
-        scToYahooModesMappings.put(YahooStatusEnum.AVAILABLE,
-                                StatusConstants.STATUS_AVAILABLE);
-        scToYahooModesMappings.put(YahooStatusEnum.BE_RIGHT_BACK,
-                                StatusConstants.STATUS_BRB);
-        scToYahooModesMappings.put(YahooStatusEnum.BUSY,
-                                 StatusConstants.STATUS_BUSY);
-        scToYahooModesMappings.put(YahooStatusEnum.IDLE,
-                                 StatusConstants.STATUS_IDLE);
-        scToYahooModesMappings.put(YahooStatusEnum.INVISIBLE,
-                                 StatusConstants.STATUS_INVISIBLE);
-        scToYahooModesMappings.put(YahooStatusEnum.NOT_AT_DESK,
-                                 StatusConstants.STATUS_NOTATDESK);
-        scToYahooModesMappings.put(YahooStatusEnum.NOT_AT_HOME,
-                                 StatusConstants.STATUS_NOTATHOME);
-        scToYahooModesMappings.put(YahooStatusEnum.NOT_IN_OFFICE,
-                                 StatusConstants.STATUS_NOTINOFFICE);
-        scToYahooModesMappings.put(YahooStatusEnum.OFFLINE,
-                                 StatusConstants.STATUS_OFFLINE);
-        scToYahooModesMappings.put(YahooStatusEnum.ON_THE_PHONE,
-                                 StatusConstants.STATUS_ONPHONE);
-        scToYahooModesMappings.put(YahooStatusEnum.ON_VACATION,
-                                 StatusConstants.STATUS_ONVACATION);
-        scToYahooModesMappings.put(YahooStatusEnum.OUT_TO_LUNCH,
-                                 StatusConstants.STATUS_OUTTOLUNCH);
-        scToYahooModesMappings.put(YahooStatusEnum.STEPPED_OUT,
-                                 StatusConstants.STATUS_STEPPEDOUT);
-    }
-
-    /**
-     * The server stored contact list that will be encapsulating smack's
-     * buddy list.
-     */
-    private ServerStoredContactListYahooImpl ssContactList = null;
-
-    /**
-     * Listens for events that are fired while registering to server.
-     * After we are registered instance is cleared and never used.
-     */
-    private EarlyEventListener earlyEventListener = null;
-
-    /**
-     * Status events are received before subscription one.
-     * And when subscription is received we deliver
-     * and the status events.
-     */
-    private StatusUpdater statusUpdater = new StatusUpdater();
-
-    public OperationSetPersistentPresenceYahooImpl(
-        ProtocolProviderServiceYahooImpl provider)
-    {
-        super(provider);
-
-        ssContactList = new ServerStoredContactListYahooImpl( this , provider);
-
-        parentProvider.addRegistrationStateChangeListener(
-            new RegistrationStateListener());
-    }
-
-    /**
-     * Registers a listener that would receive events upong changes in server
-     * stored groups.
-     *
-     * @param listener a ServerStoredGroupChangeListener impl that would
-     *   receive events upong group changes.
-     */
-    @Override
-    public void addServerStoredGroupChangeListener(ServerStoredGroupListener
-        listener)
-    {
-        ssContactList.addGroupListener(listener);
-    }
-
-    /**
-     * Creates a group with the specified name and parent in the server
-     * stored contact list.
-     *
-     * @param parent the group where the new group should be created
-     * @param groupName the name of the new group to create.
-     * @throws OperationFailedException if such group already exists
-     */
-    public void createServerStoredContactGroup(ContactGroup parent,
-                                               String groupName)
-        throws OperationFailedException
-    {
-        assertConnected();
-
-        if (!parent.canContainSubgroups())
-           throw new IllegalArgumentException(
-               "The specified contact group cannot contain child groups. Group:"
-               + parent );
-
-        ssContactList.createGroup(groupName);
-    }
-
-    /**
-     * Creates a non persistent contact for the specified address. This would
-     * also create (if necessary) a group for volatile contacts that would not
-     * be added to the server stored contact list. The volatile contact would
-     * remain in the list until it is really added to the contact list or
-     * until the application is terminated.
-     * @param id the address of the contact to create.
-     * @return the newly created volatile <tt>ContactImpl</tt>
-     */
-    public ContactYahooImpl createVolatileContact(String id)
-    {
-        return ssContactList.createVolatileContact(id);
-    }
-
-    /**
-     * Creates and returns a unresolved contact from the specified
-     * <tt>address</tt> and <tt>persistentData</tt>.
-     *
-     * @param address an identifier of the contact that we'll be creating.
-     * @param persistentData a String returned Contact's getPersistentData()
-     *   method during a previous run and that has been persistently stored
-     *   locally.
-     * @param parentGroup the group where the unresolved contact is supposed
-     *   to belong to.
-     * @return the unresolved <tt>Contact</tt> created from the specified
-     *   <tt>address</tt> and <tt>persistentData</tt>
-     */
-    public Contact createUnresolvedContact(String address,
-                                           String persistentData,
-                                           ContactGroup parentGroup)
-    {
-        if(! (parentGroup instanceof ContactGroupYahooImpl ||
-              parentGroup instanceof RootContactGroupYahooImpl) )
-            throw new IllegalArgumentException(
-                "Argument is not an yahoo contact group (group="
-                + parentGroup + ")");
-
-        ContactYahooImpl contact =
-            ssContactList.createUnresolvedContact(parentGroup, address);
-
-        contact.setPersistentData(persistentData);
-
-        return contact;
-    }
-
-    /**
-     * Creates and returns a unresolved contact from the specified
-     * <tt>address</tt> and <tt>persistentData</tt>.
-     *
-     * @param address an identifier of the contact that we'll be creating.
-     * @param persistentData a String returned Contact's getPersistentData()
-     *   method during a previous run and that has been persistently stored
-     *   locally.
-     * @return the unresolved <tt>Contact</tt> created from the specified
-     *   <tt>address</tt> and <tt>persistentData</tt>
-     */
-    public Contact createUnresolvedContact(String address,
-                                           String persistentData)
-    {
-        return createUnresolvedContact(  address
-                                       , persistentData
-                                       , getServerStoredContactListRoot());
-    }
-
-    /**
-     * Creates and returns a unresolved contact group from the specified
-     * <tt>address</tt> and <tt>persistentData</tt>.
-     *
-     * @param groupUID an identifier, returned by ContactGroup's
-     *   getGroupUID, that the protocol provider may use in order to create
-     *   the group.
-     * @param persistentData a String returned ContactGroups's
-     *   getPersistentData() method during a previous run and that has been
-     *   persistently stored locally.
-     * @param parentGroup the group under which the new group is to be
-     *   created or null if this is group directly underneath the root.
-     * @return the unresolved <tt>ContactGroup</tt> created from the
-     *   specified <tt>uid</tt> and <tt>persistentData</tt>
-     */
-    public ContactGroup createUnresolvedContactGroup(String groupUID,
-        String persistentData, ContactGroup parentGroup)
-    {
-        return ssContactList.createUnresolvedContactGroup(groupUID);
-    }
-
-    /**
-     * Returns a reference to the contact with the specified ID in case we
-     * have a subscription for it and null otherwise/
-     *
-     * @param contactID a String identifier of the contact which we're
-     *   seeking a reference of.
-     * @return a reference to the Contact with the specified
-     *   <tt>contactID</tt> or null if we don't have a subscription for the
-     *   that identifier.
-     */
-    public Contact findContactByID(String contactID)
-    {
-        return ssContactList.findContactById(contactID);
-    }
-
-    /**
-     * Returns the status message that was confirmed by the serfver
-     *
-     * @return the last status message that we have requested and the aim
-     *   server has confirmed.
-     */
-    public String getCurrentStatusMessage()
-    {
-        return currentStatusMessage;
-    }
-
-    /**
-     * Returns the protocol specific contact instance representing the local
-     * user.
-     *
-     * @return the Contact (address, phone number, or uin) that the Provider
-     *   implementation is communicating on behalf of.
-     */
-    public Contact getLocalContact()
-    {
-        return null;
-    }
-
-    /**
-     * Returns a PresenceStatus instance representing the state this provider
-     * is currently in.
-     *
-     * @return the PresenceStatus last published by this provider.
-     */
-    public PresenceStatus getPresenceStatus()
-    {
-        return currentStatus;
-    }
-
-    /**
-     * Returns the root group of the server stored contact list.
-     *
-     * @return the root ContactGroup for the ContactList stored by this
-     *   service.
-     */
-    public ContactGroup getServerStoredContactListRoot()
-    {
-        return ssContactList.getRootGroup();
-    }
-
-    /**
-     * Returns the set of PresenceStatus objects that a user of this service
-     * may request the provider to enter.
-     *
-     * @return Iterator a PresenceStatus array containing "enterable" status
-     *   instances.
-     */
-    public Iterator<PresenceStatus> getSupportedStatusSet()
-    {
-        return supportedPresenceStatusSet.iterator();
-    }
-
-    /**
-     * Removes the specified contact from its current parent and places it
-     * under <tt>newParent</tt>.
-     *
-     * @param contactToMove the <tt>Contact</tt> to move
-     * @param newParent the <tt>ContactGroup</tt> where <tt>Contact</tt>
-     *   would be placed.
-     */
-    public void moveContactToGroup(Contact contactToMove,
-                                   ContactGroup newParent)
-    {
-        assertConnected();
-
-        if( !(contactToMove instanceof ContactYahooImpl) )
-            throw new IllegalArgumentException(
-                "The specified contact is not an yahoo contact." + contactToMove);
-        if( !(newParent instanceof ContactGroupYahooImpl) )
-            throw new IllegalArgumentException(
-                "The specified group is not an yahoo contact group."
-                + newParent);
-
-        ssContactList.moveContact((ContactYahooImpl)contactToMove,
-                                  (ContactGroupYahooImpl)newParent);
-    }
-
-    /**
-     * Requests the provider to enter into a status corresponding to the
-     * specified paramters.
-     *
-     * @param status the PresenceStatus as returned by
-     *   getRequestableStatusSet
-     * @param statusMessage the message that should be set as the reason to
-     *   enter that status
-     * @throws IllegalArgumentException if the status requested is not a
-     *   valid PresenceStatus supported by this provider.
-     * @throws IllegalStateException if the provider is not currently
-     *   registered.
-     * @throws OperationFailedException with code NETWORK_FAILURE if
-     *   publishing the status fails due to a network error.
-     */
-    public void publishPresenceStatus(PresenceStatus status,
-                                      String statusMessage) throws
-        IllegalArgumentException, IllegalStateException,
-        OperationFailedException
-    {
-        assertConnected();
-
-        if (!(status instanceof YahooStatusEnum))
-            throw new IllegalArgumentException(
-                            status + " is not a valid Yahoo status");
-
-        if(status.equals(YahooStatusEnum.OFFLINE))
-        {
-            parentProvider.unregister();
-            return;
-        }
-
-        try
-        {
-            if(statusMessage != null && statusMessage.length() != 0)
-            {
-                boolean isAvailable = false;
-
-                if(status.equals(YahooStatusEnum.AVAILABLE))
-                    isAvailable = true;
-
-                // false - away
-                // true - available
-                parentProvider.getYahooSession().
-                    setStatus(statusMessage, isAvailable);
-            }
-
-            parentProvider.getYahooSession().setStatus(
-                scToYahooModesMappings.get(status).longValue());
-
-            fireProviderStatusChangeEvent(currentStatus, status);
-        }
-        catch(IOException ex)
-        {
-            throw new OperationFailedException("Failed to set Status",
-                OperationFailedException.NETWORK_FAILURE);
-        }
-    }
-
-    /**
-     * Get the PresenceStatus for a particular contact.
-     *
-     * @param contactIdentifier the identifier of the contact whose status
-     *   we're interested in.
-     * @return PresenceStatus the <tt>PresenceStatus</tt> of the specified
-     *   <tt>contact</tt>
-     * @throws IllegalArgumentException if <tt>contact</tt> is not a contact
-     *   known to the underlying protocol provider
-     * @throws IllegalStateException if the underlying protocol provider is
-     *   not registered/signed on a public service.
-     * @throws OperationFailedException with code NETWORK_FAILURE if
-     *   retrieving the status fails due to errors experienced during
-     *   network communication
-     */
-    public PresenceStatus queryContactStatus(String contactIdentifier) throws
-        IllegalArgumentException, IllegalStateException,
-        OperationFailedException
-    {
-
-        ContactYahooImpl contact = ssContactList.findContactById(contactIdentifier);
-        if(contact == null)
-        {
-            if (logger.isInfoEnabled())
-                logger.info("Contact not found id :" + contactIdentifier);
-            return null;
-        }
-        else
-            return yahooStatusToPresenceStatus(contact.getSourceContact().getStatus());
-    }
-
-    /**
-     * Removes the specified group from the server stored contact list.
-     *
-     * @param group the group to remove.
-     */
-    public void removeServerStoredContactGroup(ContactGroup group)
-    {
-        assertConnected();
-
-        if( !(group instanceof ContactGroupYahooImpl) )
-            throw new IllegalArgumentException(
-                "The specified group is not an yahoo contact group: " + group);
-
-        ssContactList.removeGroup(((ContactGroupYahooImpl)group));
-    }
-
-    /**
-     * Removes the specified group change listener so that it won't receive
-     * any further events.
-     *
-     * @param listener the ServerStoredGroupChangeListener to remove
-     */
-    @Override
-    public void removeServerStoredGroupChangeListener(ServerStoredGroupListener
-        listener)
-    {
-        ssContactList.removeGroupListener(listener);
-    }
-
-    /**
-     * Renames the specified group from the server stored contact list.
-     *
-     * @param group the group to rename.
-     * @param newName the new name of the group.
-     */
-    public void renameServerStoredContactGroup(ContactGroup group,
-                                               String newName)
-    {
-        assertConnected();
-
-        if( !(group instanceof ContactGroupYahooImpl) )
-            throw new IllegalArgumentException(
-                "The specified group is not an yahoo contact group: " + group);
-
-        throw new UnsupportedOperationException("Renaming group not supported!");
-        //ssContactList.renameGroup((ContactGroupYahooImpl)group, newName);
-    }
-
-    /**
-     * Handler for incoming authorization requests.
-     *
-     * @param handler an instance of an AuthorizationHandler for
-     *   authorization requests coming from other users requesting
-     *   permission add us to their contact list.
-     */
-    public void setAuthorizationHandler(AuthorizationHandler handler)
-    {
-        ssContactList.setAuthorizationHandler(handler);
-
-        // we got a handler. Lets process if something has came
-        // during login process
-        if(earlyEventListener != null)
-        {
-            earlyEventListener.processEarlyAuthorizations();
-            earlyEventListener = null;
-        }
-    }
-
-    /**
-     * Persistently adds a subscription for the presence status of the
-     * contact corresponding to the specified contactIdentifier and indicates
-     * that it should be added to the specified group of the server stored
-     * contact list.
-     *
-     * @param parent the parent group of the server stored contact list
-     *   where the contact should be added. <p>
-     * @param contactIdentifier the contact whose status updates we are
-     *   subscribing for.
-     * @throws IllegalArgumentException if <tt>contact</tt> or
-     *   <tt>parent</tt> are not a contact known to the underlying protocol
-     *   provider.
-     * @throws IllegalStateException if the underlying protocol provider is
-     *   not registered/signed on a public service.
-     * @throws OperationFailedException with code NETWORK_FAILURE if
-     *   subscribing fails due to errors experienced during network
-     *   communication
-     */
-    public void subscribe(ContactGroup parent, String contactIdentifier) throws
-        IllegalArgumentException, IllegalStateException,
-        OperationFailedException
-    {
-        assertConnected();
-
-        if(! (parent instanceof ContactGroupYahooImpl) )
-            throw new IllegalArgumentException(
-                "Argument is not an yahoo contact group (group=" + parent + ")");
-
-        ssContactList.addContact((ContactGroupYahooImpl)parent, contactIdentifier);
-    }
-
-    /**
-     * Adds a subscription for the presence status of the contact
-     * corresponding to the specified contactIdentifier.
-     *
-     * @param contactIdentifier the identifier of the contact whose status
-     *   updates we are subscribing for. <p>
-     * @throws IllegalArgumentException if <tt>contact</tt> is not a contact
-     *   known to the underlying protocol provider
-     * @throws IllegalStateException if the underlying protocol provider is
-     *   not registered/signed on a public service.
-     * @throws OperationFailedException with code NETWORK_FAILURE if
-     *   subscribing fails due to errors experienced during network
-     *   communication
-     */
-    public void subscribe(String contactIdentifier) throws
-        IllegalArgumentException, IllegalStateException,
-        OperationFailedException
-    {
-        assertConnected();
-
-        ssContactList.addContact(contactIdentifier);
-    }
-
-    /**
-     * Removes a subscription for the presence status of the specified
-     * contact.
-     *
-     * @param contact the contact whose status updates we are unsubscribing
-     *   from.
-     * @throws IllegalArgumentException if <tt>contact</tt> is not a contact
-     *   known to the underlying protocol provider
-     * @throws IllegalStateException if the underlying protocol provider is
-     *   not registered/signed on a public service.
-     * @throws OperationFailedException with code NETWORK_FAILURE if
-     *   unsubscribing fails due to errors experienced during network
-     *   communication
-     */
-    public void unsubscribe(Contact contact) throws IllegalArgumentException,
-        IllegalStateException, OperationFailedException
-    {
-        assertConnected();
-
-        if(! (contact instanceof ContactYahooImpl) )
-            throw new IllegalArgumentException(
-                "Argument is not an yahoo contact (contact=" + contact + ")");
-
-        ssContactList.removeContact((ContactYahooImpl)contact);
-    }
-
-    /**
-     * Converts the specified yahoo status to one of the status fields of the
-     * YahooStatusEnum class.
-     *
-     * @param status the yahoo Status
-     * @return a PresenceStatus instance representation of the yahoo Status
-     * parameter. The returned result is one of the YahooStatusEnum fields.
-     */
-    YahooStatusEnum yahooStatusToPresenceStatus(long status)
-    {
-        if(status == StatusConstants.STATUS_AVAILABLE)
-            return YahooStatusEnum.AVAILABLE;
-        else if(status == StatusConstants.STATUS_BRB)
-            return YahooStatusEnum.BE_RIGHT_BACK;
-        else if(status == StatusConstants.STATUS_BUSY)
-            return YahooStatusEnum.BUSY;
-        else if(status == StatusConstants.STATUS_NOTATHOME)
-            return YahooStatusEnum.NOT_AT_HOME;
-        else if(status == StatusConstants.STATUS_NOTATDESK)
-            return YahooStatusEnum.NOT_AT_DESK;
-        else if(status == StatusConstants.STATUS_NOTINOFFICE)
-            return YahooStatusEnum.NOT_IN_OFFICE;
-        else if(status == StatusConstants.STATUS_ONPHONE)
-            return YahooStatusEnum.ON_THE_PHONE;
-        else if(status == StatusConstants.STATUS_ONVACATION)
-            return YahooStatusEnum.ON_VACATION;
-        else if(status == StatusConstants.STATUS_OUTTOLUNCH)
-            return YahooStatusEnum.OUT_TO_LUNCH;
-        else if(status == StatusConstants.STATUS_STEPPEDOUT)
-            return YahooStatusEnum.STEPPED_OUT;
-        else if(status == StatusConstants.STATUS_INVISIBLE)
-            return YahooStatusEnum.INVISIBLE;
-        else if(status == StatusConstants.STATUS_IDLE)
-            return YahooStatusEnum.IDLE;
-        else if(status == StatusConstants.STATUS_OFFLINE)
-            return YahooStatusEnum.OFFLINE;
-        // Yahoo supports custom statuses so if such is set just return available
-        else
-            return YahooStatusEnum.AVAILABLE;
-    }
-
-    /**
-     * Utility method throwing an exception if the stack is not properly
-     * initialized.
-     * @throws java.lang.IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     */
-    private void assertConnected() throws IllegalStateException
-    {
-        if (parentProvider == null)
-            throw new IllegalStateException(
-                "The provider must be non-null and signed on the yahoo "
-                +"service before being able to communicate.");
-        if (!parentProvider.isRegistered())
-            throw new IllegalStateException(
-                "The provider must be signed on the yahoo service before "
-                +"being able to communicate.");
-    }
-
-    /**
-     * Notify all provider presence listeners of the corresponding event change
-     *
-     * @param oldStatus
-     *            the status our stack had so far
-     * @param newStatus
-     *            the status we have from now on
-     */
-    @Override
-    protected void fireProviderStatusChangeEvent(
-        PresenceStatus oldStatus,
-        PresenceStatus newStatus)
-    {
-        if (!oldStatus.equals(newStatus))
-        {
-            currentStatus = newStatus;
-
-            super.fireProviderStatusChangeEvent(oldStatus, newStatus);
-        }
-    }
-
-    /**
-     * Statuses have been received durring login process
-     * so we will init them once we are logged in
-     */
-    private void initContactStatuses()
-    {
-        YahooGroup[] groups = parentProvider.getYahooSession().getGroups();
-
-        for (YahooGroup item : groups)
-        {
-            @SuppressWarnings("unchecked")
-            Iterable<YahooUser> members = item.getMembers();
-
-            for (YahooUser user : members)
-            {
-                ContactYahooImpl sourceContact =
-                    ssContactList.findContactById(user.getId());
-
-                if(sourceContact != null)
-                    handleContactStatusChange(sourceContact, user);
-            }
-        }
-    }
-
-    /**
-     * Our listener that will tell us when we're registered to server
-     * and is ready to accept us as a listener.
-     */
-    private class RegistrationStateListener
-        implements RegistrationStateChangeListener
-    {
-        /**
-         * The method is called by a ProtocolProvider implementation whenever
-         * a change in the registration state of the corresponding provider had
-         * occurred.
-         * @param evt ProviderStatusChangeEvent the event describing the status
-         * change.
-         */
-        public void registrationStateChanged(RegistrationStateChangeEvent evt)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("The yahoo provider changed state from: "
-                         + evt.getOldState()
-                         + " to: " + evt.getNewState());
-
-            if(evt.getNewState() == RegistrationState.REGISTERING)
-            {
-                // add new listener waiting for events during login process
-                earlyEventListener
-                    = new EarlyEventListener(parentProvider.getYahooSession());
-            }
-            else if(evt.getNewState() == RegistrationState.REGISTERED)
-            {
-                parentProvider.getYahooSession().
-                    addSessionListener(new StatusChangedListener());
-
-                ssContactList.setYahooSession(parentProvider.getYahooSession());
-
-                initContactStatuses();
-
-                addSubscriptionListener(statusUpdater);
-
-                if(earlyEventListener != null)
-                {
-                    earlyEventListener.dispose();
-                    earlyEventListener = null;
-                }
-            }
-            else if(evt.getNewState() == RegistrationState.UNREGISTERED
-                 || evt.getNewState() == RegistrationState.AUTHENTICATION_FAILED
-                 || evt.getNewState() == RegistrationState.CONNECTION_FAILED)
-            {
-                //since we are disconnected, we won't receive any further status
-                //updates so we need to change by ourselves our own status as
-                //well as set to offline all contacts in our contact list that
-                //were online
-                PresenceStatus oldStatus = currentStatus;
-                currentStatus = YahooStatusEnum.OFFLINE;
-
-                fireProviderStatusChangeEvent(oldStatus, currentStatus);
-
-                removeSubscriptionListener(statusUpdater);
-
-                //send event notifications saying that all our buddies are
-                //offline. The protocol does not implement top level buddies
-                //nor subgroups for top level groups so a simple nested loop
-                //would be enough.
-                Iterator<ContactGroup> groupsIter =
-                    getServerStoredContactListRoot().subgroups();
-                while(groupsIter.hasNext())
-                {
-                    ContactGroup group = groupsIter.next();
-                    Iterator<Contact> contactsIter = group.contacts();
-
-                    while(contactsIter.hasNext())
-                    {
-                        ContactYahooImpl contact
-                            = (ContactYahooImpl)contactsIter.next();
-
-                        PresenceStatus oldContactStatus
-                            = contact.getPresenceStatus();
-
-                        if(!oldContactStatus.isOnline())
-                            continue;
-
-                        contact.updatePresenceStatus(YahooStatusEnum.OFFLINE);
-
-                        fireContactPresenceStatusChangeEvent(
-                              contact
-                            , contact.getParentContactGroup()
-                            , oldContactStatus, YahooStatusEnum.OFFLINE);
-                    }
-                }
-
-                // clear listener
-                if(earlyEventListener != null)
-                {
-                    earlyEventListener.dispose();
-                    earlyEventListener = null;
-                }
-            }
-        }
-    }
-
-    private void handleContactStatusChange(YahooUser yFriend)
-    {
-        ContactYahooImpl sourceContact =
-            ssContactList.findContactById(yFriend.getId());
-
-        if(sourceContact == null)
-        {
-            if(parentProvider.getAccountID().getUserID().
-                equals(yFriend.getId()))
-            {
-                // thats my own status
-                if (logger.isTraceEnabled())
-                    logger.trace("Own status changed to " + yFriend.getStatus());
-                PresenceStatus oldStatus = currentStatus;
-                currentStatus =
-                    yahooStatusToPresenceStatus(yFriend.getStatus());
-                fireProviderStatusChangeEvent(oldStatus, currentStatus);
-
-                return;
-            }
-            // strange
-            else
-                return;
-        }
-
-        handleContactStatusChange(sourceContact, yFriend);
-    }
-
-    void handleContactStatusChange(ContactYahooImpl sourceContact, YahooUser yFriend)
-    {
-        PresenceStatus oldStatus
-                = sourceContact.getPresenceStatus();
-
-        PresenceStatus newStatus = yahooStatusToPresenceStatus(yFriend.getStatus());
-
-        // statuses maybe the same and only change in status message
-        sourceContact.setStatusMessage(yFriend.getCustomStatusMessage());
-
-        // when old and new status are the same do nothing - no change
-        if(oldStatus.equals(newStatus))
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("old(" + oldStatus + ") and new("+ newStatus + ") statuses are the same!");
-            return;
-        }
-
-        sourceContact.updatePresenceStatus(newStatus);
-
-        ContactGroup parent
-            = ssContactList.findContactGroup(sourceContact);
-
-        if (logger.isDebugEnabled())
-            logger.debug("Will Dispatch the contact status event.");
-        fireContactPresenceStatusChangeEvent(sourceContact, parent,
-            oldStatus, newStatus);
-    }
-
-    private class StatusChangedListener
-        extends SessionAdapter
-    {
-        @Override
-        public void friendsUpdateReceived(SessionFriendEvent evt)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Received a status update for contact " + evt);
-
-            if(evt.getFriend() != null)
-            {
-                handleContactStatusChange(evt.getFriend());
-            }
-            else if(evt.getFriends() != null)
-            {
-                YahooUser[] yfs = evt.getFriends();
-                for (int i = 0; i < yfs.length; i++)
-                    handleContactStatusChange(yfs[i]);
-            }
-        }
-    }
-
-    /**
-     * Updates the statuses of newly created persistent contacts
-     */
-    private class StatusUpdater
-        extends SubscriptionAdapter
-    {
-        @Override
-        public void subscriptionCreated(SubscriptionEvent evt)
-        {
-            ContactYahooImpl contact =
-                (ContactYahooImpl)evt.getSourceContact();
-
-            if(!contact.isPersistent() || !contact.isResolved())
-                return;
-
-            handleContactStatusChange(contact, contact.getSourceContact());
-        }
-    }
-
-    private class EarlyEventListener
-        extends SessionAdapter
-    {
-        private final List<SessionAuthorizationEvent> receivedAuthorizations
-            = new Vector<SessionAuthorizationEvent>();
-
-        /**
-         * The <code>YahooSession</code> this instance is listening to because
-         * the <code>YahooSession</code> isn't available in
-         * <code>parentProvider</code> after
-         * {@link RegistrationState#UNREGISTERED} and then this listener cannot
-         * be removed.
-         */
-        private final YahooSession yahooSession;
-
-        public EarlyEventListener(YahooSession yahooSession)
-        {
-            this.yahooSession = yahooSession;
-            this.yahooSession.addSessionListener(this);
-        }
-
-        @Override
-        public void authorizationReceived(SessionAuthorizationEvent ev)
-        {
-            if(ev.isAuthorizationRequest())
-            {
-                if (logger.isTraceEnabled())
-                    logger.trace("authorizationRequestReceived from " +
-                        ev.getFrom());
-                receivedAuthorizations.add(ev);
-            }
-        }
-
-        public void dispose()
-        {
-            yahooSession.removeSessionListener(this);
-        }
-
-        public void processEarlyAuthorizations()
-        {
-            for (SessionAuthorizationEvent e : receivedAuthorizations)
-            {
-                ssContactList.processAuthorizationRequest(e);
-            }
-        }
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetTypingNotificationsYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetTypingNotificationsYahooImpl.java
deleted file mode 100644
index 81e266a..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/OperationSetTypingNotificationsYahooImpl.java
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.event.*;
-
-/**
- * Maps SIP Communicator typing notifications to those going and coming from
- * smack lib.
- *
- * @author Damian Minkov
- */
-public class OperationSetTypingNotificationsYahooImpl
-    extends AbstractOperationSetTypingNotifications<ProtocolProviderServiceYahooImpl>
-{
-    private static final Logger logger =
-        Logger.getLogger(OperationSetTypingNotificationsYahooImpl.class);
-
-    /**
-     * An active instance of the opSetPersPresence operation set. We're using
-     * it to map incoming events to contacts in our contact list.
-     */
-    private OperationSetPersistentPresenceYahooImpl opSetPersPresence = null;
-
-    /**
-     * @param provider a ref to the <tt>ProtocolProviderServiceImpl</tt>
-     * that created us and that we'll use for retrieving the underlying aim
-     * connection.
-     */
-    OperationSetTypingNotificationsYahooImpl(
-        ProtocolProviderServiceYahooImpl provider)
-    {
-        super(provider);
-
-        provider.addRegistrationStateChangeListener(new ProviderRegListener());
-    }
-
-    /**
-     * Sends a notification to <tt>notifiedContatct</tt> that we have entered
-     * <tt>typingState</tt>.
-     *
-     * @param notifiedContact the <tt>Contact</tt> to notify
-     * @param typingState the typing state that we have entered.
-     *
-     * @throws java.lang.IllegalStateException if the underlying stack is
-     * not registered and initialized.
-     * @throws java.lang.IllegalArgumentException if <tt>notifiedContact</tt> is
-     * not an instance belonging to the underlying implementation.
-     */
-    public void sendTypingNotification(Contact notifiedContact, int typingState)
-        throws IllegalStateException, IllegalArgumentException
-    {
-        assertConnected();
-
-        if( !(notifiedContact instanceof ContactYahooImpl) )
-           throw new IllegalArgumentException(
-               "The specified contact is not an yahoo contact."
-               + notifiedContact);
-
-       if(typingState == OperationSetTypingNotifications.STATE_TYPING)
-       {
-
-           parentProvider.getYahooSession().
-               keyTyped(notifiedContact.getAddress(),
-                       parentProvider.getAccountID().getUserID());
-       }
-       else
-           if(typingState == OperationSetTypingNotifications.STATE_STOPPED ||
-           typingState == OperationSetTypingNotifications.STATE_PAUSED)
-           {
-               parentProvider.getYahooSession().
-                   stopTyping(notifiedContact.getAddress(),
-                           parentProvider.getAccountID().getUserID());
-           }
-    }
-
-    private class TypingListener
-        extends SessionAdapter
-    {
-        @Override
-        public void notifyReceived(SessionNotifyEvent evt)
-        {
-            if(evt.isTyping())
-            {
-                String typingUserID = evt.getFrom();
-
-                if(typingUserID != null)
-                {
-                    Contact sourceContact =
-                        opSetPersPresence.findContactByID(typingUserID);
-
-                    if(sourceContact == null)
-                        return;
-
-                    // typing on
-                    fireTypingNotificationsEvent(
-                        sourceContact,
-                        (evt.getMode() == 1) ? STATE_TYPING : STATE_STOPPED);
-                }
-            }
-        }
-    }
-
-    /**
-     * Our listener that will tell us when we're registered and
-     * ready to accept us as a listener.
-     */
-    private class ProviderRegListener
-        implements RegistrationStateChangeListener
-    {
-        /**
-         * The method is called by a ProtocolProvider implementation whenever
-         * a change in the registration state of the corresponding provider had
-         * occurred.
-         * @param evt ProviderStatusChangeEvent the event describing the status
-         * change.
-         */
-        public void registrationStateChanged(RegistrationStateChangeEvent evt)
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("The provider changed state from: "
-                         + evt.getOldState()
-                         + " to: " + evt.getNewState());
-            if (evt.getNewState() == RegistrationState.REGISTERED)
-            {
-                opSetPersPresence =
-                    (OperationSetPersistentPresenceYahooImpl) parentProvider
-                        .getOperationSet(OperationSetPersistentPresence.class);
-
-                parentProvider
-                    .getYahooSession().addSessionListener(new TypingListener());
-            }
-        }
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolIconYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolIconYahooImpl.java
deleted file mode 100644
index 34befc9..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolIconYahooImpl.java
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.util.*;
-
-import org.jitsi.service.resources.*;
-import org.osgi.framework.*;
-
-/**
- * Represents the Yahoo protocol icon. Implements the <tt>ProtocolIcon</tt>
- * interface in order to provide an Yahoo icon image in two different sizes.
- *
- * @author Yana Stamcheva
- */
-public class ProtocolIconYahooImpl
-    implements ProtocolIcon
-{
-    private static Logger logger = Logger.getLogger(ProtocolIconYahooImpl.class);
-
-    private static ResourceManagementService resourcesService;
-
-    /**
-     * A hash table containing the protocol icon in different sizes.
-     */
-    private static Hashtable<String, byte[]> iconsTable
-        = new Hashtable<String, byte[]>();
-    static
-    {
-        iconsTable.put(ProtocolIcon.ICON_SIZE_16x16,
-            getImageInBytes("service.protocol.yahoo.YAHOO_16x16"));
-
-        iconsTable.put(ProtocolIcon.ICON_SIZE_32x32,
-            getImageInBytes("service.protocol.yahoo.YAHOO_32x32"));
-
-        iconsTable.put(ProtocolIcon.ICON_SIZE_48x48,
-            getImageInBytes("service.protocol.yahoo.YAHOO_48x48"));
-
-        iconsTable.put(ProtocolIcon.ICON_SIZE_64x64,
-            getImageInBytes("service.protocol.yahoo.YAHOO_64x64"));
-    }
-
-    /**
-     * A hash table containing the protocol icon in different sizes.
-     */
-    private static Hashtable<String, String> iconPathsTable
-        = new Hashtable<String, String>();
-    static
-    {
-        iconPathsTable.put(ProtocolIcon.ICON_SIZE_16x16,
-            getResources().getImagePath("service.protocol.yahoo.YAHOO_16x16"));
-
-        iconPathsTable.put(ProtocolIcon.ICON_SIZE_32x32,
-            getResources().getImagePath("service.protocol.yahoo.YAHOO_32x32"));
-
-        iconPathsTable.put(ProtocolIcon.ICON_SIZE_48x48,
-            getResources().getImagePath("service.protocol.yahoo.YAHOO_48x48"));
-
-        iconPathsTable.put(ProtocolIcon.ICON_SIZE_64x64,
-            getResources().getImagePath("service.protocol.yahoo.YAHOO_64x64"));
-    }
-
-    /**
-     * Implements the <tt>ProtocolIcon.getSupportedSizes()</tt> method. Returns
-     * an iterator to a set containing the supported icon sizes.
-     * @return an iterator to a set containing the supported icon sizes
-     */
-    public Iterator<String> getSupportedSizes()
-    {
-        return iconsTable.keySet().iterator();
-    }
-
-    /**
-     * Returns TRUE if a icon with the given size is supported, FALSE-otherwise.
-     */
-    public boolean isSizeSupported(String iconSize)
-    {
-        return iconsTable.containsKey(iconSize);
-    }
-
-    /**
-     * Returns the icon image in the given size.
-     * @param iconSize the icon size; one of ICON_SIZE_XXX constants
-     */
-    public byte[] getIcon(String iconSize)
-    {
-        return iconsTable.get(iconSize);
-    }
-
-    /**
-     * Returns a path to the icon with the given size.
-     * @param iconSize the size of the icon we're looking for
-     * @return the path to the icon with the given size
-     */
-    public String getIconPath(String iconSize)
-    {
-        return iconPathsTable.get(iconSize);
-    }
-
-    /**
-     * Returns the icon image used to represent the protocol connecting state.
-     * @return the icon image used to represent the protocol connecting state
-     */
-    public byte[] getConnectingIcon()
-    {
-        return getImageInBytes("yahooConnectingIcon");
-    }
-
-    /**
-     * Returns the byte representation of the image corresponding to the given
-     * identifier.
-     *
-     * @param imageID the identifier of the image
-     * @return the byte representation of the image corresponding to the given
-     * identifier.
-     */
-    public static byte[] getImageInBytes(String imageID)
-    {
-        InputStream in = getResources().getImageInputStream(imageID);
-
-        if (in == null)
-            return null;
-        byte[] image = null;
-        try
-        {
-            image = new byte[in.available()];
-
-            in.read(image);
-        }
-        catch (IOException e)
-        {
-            logger.error("Failed to load image:" + imageID, e);
-        }
-
-        return image;
-    }
-
-    public static ResourceManagementService getResources()
-    {
-        if (resourcesService == null)
-        {
-            ServiceReference serviceReference = YahooActivator.getBundleContext()
-                .getServiceReference(ResourceManagementService.class.getName());
-
-            if(serviceReference == null)
-                return null;
-
-            resourcesService = (ResourceManagementService)
-                YahooActivator.getBundleContext().getService(serviceReference);
-        }
-
-        return resourcesService;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderFactoryYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderFactoryYahooImpl.java
deleted file mode 100644
index 358286c..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderFactoryYahooImpl.java
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-import org.osgi.framework.*;
-
-/**
- * The Yahoo implementation of the ProtocolProviderFactory.
- * @author Damian Minkov
- */
-public class ProtocolProviderFactoryYahooImpl
-    extends ProtocolProviderFactory
-{
-
-    /**
-     * Creates an instance of the ProtocolProviderFactoryYahooImpl.
-     */
-    protected ProtocolProviderFactoryYahooImpl()
-    {
-        super(YahooActivator.getBundleContext(), ProtocolNames.YAHOO);
-    }
-
-    /**
-     * Initializes and creates an account corresponding to the specified
-     * accountProperties and registers the resulting ProtocolProvider in the
-     * <tt>context</tt> BundleContext parameter. This method has a persistent
-     * effect. Once created the resulting account will remain installed until
-     * removed through the uninstall account method.
-     *
-     * @param userIDStr the user identifier for the new account
-     * @param accountProperties a set of protocol (or implementation)
-     *   specific properties defining the new account.
-     * @return the AccountID of the newly created account
-     */
-    @Override
-    public AccountID installAccount( String userIDStr,
-                                     Map<String, String> accountProperties)
-    {
-        BundleContext context
-            = YahooActivator.getBundleContext();
-        if (context == null)
-            throw new NullPointerException("The specified BundleContext was null");
-
-        if (userIDStr == null)
-            throw new NullPointerException("The specified AccountID was null");
-
-        if (accountProperties == null)
-            throw new NullPointerException("The specified property map was null");
-
-        accountProperties.put(USER_ID, userIDStr);
-
-        AccountID accountID = new YahooAccountID(userIDStr, accountProperties);
-
-        //make sure we haven't seen this account id before.
-        if( registeredAccounts.containsKey(accountID) )
-            throw new IllegalStateException(
-                "An account for id " + userIDStr + " was already installed!");
-
-        //first store the account and only then load it as the load generates
-        //an osgi event, the osgi event triggers (through the UI) a call to
-        //the register() method and it needs to access the configuration service
-        //and check for a password.
-        this.storeAccount(accountID, false);
-
-        accountID = loadAccount(accountProperties);
-
-        return accountID;
-    }
-
-    @Override
-    protected AccountID createAccountID(String userID, Map<String, String> accountProperties)
-    {
-        return new YahooAccountID(userID, accountProperties);
-    }
-
-    @Override
-    protected ProtocolProviderService createService(String userID,
-        AccountID accountID)
-    {
-        ProtocolProviderServiceYahooImpl service =
-            new ProtocolProviderServiceYahooImpl();
-
-        service.initialize(userID, accountID);
-        return service;
-    }
-
-    @Override
-    public void modifyAccount(  ProtocolProviderService protocolProvider,
-                                Map<String, String> accountProperties)
-        throws NullPointerException
-    {
-        BundleContext context
-            = YahooActivator.getBundleContext();
-
-        if (context == null)
-            throw new NullPointerException(
-                "The specified BundleContext was null");
-
-        if (protocolProvider == null)
-            throw new NullPointerException(
-                "The specified Protocol Provider was null");
-
-        YahooAccountID accountID
-            = (YahooAccountID) protocolProvider.getAccountID();
-
-        // If the given accountID doesn't correspond to an existing account
-        // we return.
-        if(!registeredAccounts.containsKey(accountID))
-            return;
-
-        ServiceRegistration registration = registeredAccounts.get(accountID);
-
-        // kill the service
-        if (registration != null)
-            registration.unregister();
-
-        if (accountProperties == null)
-            throw new NullPointerException(
-                "The specified property map was null");
-
-        accountProperties.put(USER_ID, accountID.getUserID());
-
-        if (!accountProperties.containsKey(PROTOCOL))
-            accountProperties.put(PROTOCOL, ProtocolNames.YAHOO);
-
-        accountID.setAccountProperties(accountProperties);
-
-        // First store the account and only then load it as the load generates
-        // an osgi event, the osgi event triggers (trhgough the UI) a call to
-        // the register() method and it needs to acces the configuration service
-        // and check for a password.
-        this.storeAccount(accountID);
-
-        Hashtable<String, String> properties = new Hashtable<String, String>();
-        properties.put(PROTOCOL, ProtocolNames.YAHOO);
-        properties.put(USER_ID, accountID.getUserID());
-
-        ((ProtocolProviderServiceYahooImpl)protocolProvider)
-            .initialize(accountID.getUserID(), accountID);
-
-        // We store again the account in order to store all properties added
-        // during the protocol provider initialization.
-        this.storeAccount(accountID);
-
-        registration
-            = context.registerService(
-                        ProtocolProviderService.class.getName(),
-                        protocolProvider,
-                        properties);
-
-        registeredAccounts.put(accountID, registration);
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderServiceYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderServiceYahooImpl.java
deleted file mode 100644
index 264aaab..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderServiceYahooImpl.java
+++ /dev/null
@@ -1,574 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-
-import net.java.sip.communicator.service.dns.*;
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-import ymsg.network.event.*;
-
-/**
- * An implementation of the protocol provider service over the Yahoo protocol
- *
- * @author Damian Minkov
- */
-public class ProtocolProviderServiceYahooImpl
-    extends AbstractProtocolProviderService
-{
-    /**
-     * This class logger.
-     */
-    private static final Logger logger =
-        Logger.getLogger(ProtocolProviderServiceYahooImpl.class);
-
-    /**
-     * The current yahoo session.
-     */
-    private YahooSession yahooSession = null;
-
-    /**
-     * indicates whether or not the provider is initialized and ready for use.
-     */
-    private boolean isInitialized = false;
-
-    /**
-     * We use this to lock access to initialization.
-     */
-    private final Object initializationLock = new Object();
-
-    /**
-     * The identifier of the account that this provider represents.
-     */
-    private AccountID accountID = null;
-
-    /**
-     * Used when we need to re-register
-     */
-    private SecurityAuthority authority = null;
-
-    /**
-     * The persistent presence operations set.
-     */
-    private OperationSetPersistentPresenceYahooImpl persistentPresence = null;
-
-    /**
-     * Typing notifications operations set.
-     */
-    private OperationSetTypingNotificationsYahooImpl typingNotifications = null;
-
-    /**
-     * The logo corresponding to the msn protocol.
-     */
-    private ProtocolIconYahooImpl yahooIcon
-        = new ProtocolIconYahooImpl();
-
-    /**
-     * The connection listener.
-     */
-    private YahooConnectionListener connectionListener = null;
-
-    /**
-     * Returns the state of the registration of this protocol provider
-     * @return the <tt>RegistrationState</tt> that this provider is
-     * currently in or null in case it is in a unknown state.
-     */
-    public RegistrationState getRegistrationState()
-    {
-        if(yahooSession != null &&
-            yahooSession.getSessionStatus() == StatusConstants.MESSAGING)
-            return RegistrationState.REGISTERED;
-        else
-            return RegistrationState.UNREGISTERED;
-    }
-
-    /**
-     * Starts the registration process. Connection details such as
-     * registration server, user name/number are provided through the
-     * configuration service through implementation specific properties.
-     *
-     * @param authority the security authority that will be used for resolving
-     *        any security challenges that may be returned during the
-     *        registration or at any moment while wer're registered.
-     * @throws OperationFailedException with the corresponding code it the
-     * registration fails for some reason (e.g. a networking error or an
-     * implementation problem).
-     */
-    public void register(final SecurityAuthority authority)
-        throws OperationFailedException
-    {
-        if(authority == null)
-            throw new IllegalArgumentException(
-                "The register method needs a valid non-null authority impl "
-                + " in order to be able and retrieve passwords.");
-
-        this.authority = authority;
-
-        connectAndLogin(authority, SecurityAuthority.AUTHENTICATION_REQUIRED);
-    }
-
-    /**
-     * Connects and logins to the server
-     * @param authority SecurityAuthority
-     * @param authReasonCode the authentication reason code, which should
-     * indicate why are making an authentication request
-     * @throws  OperationFailedException if login parameters
-     *          as server port are not correct
-     */
-    private void connectAndLogin(   SecurityAuthority authority,
-                                    int authReasonCode)
-        throws OperationFailedException
-    {
-        synchronized(initializationLock)
-        {
-            //verify whether a password has already been stored for this account
-            String password = YahooActivator.
-                getProtocolProviderFactory().loadPassword(getAccountID());
-
-            // If the password hasn't been saved or the reason is one of those
-            // listed below we need to ask the user for credentials again.
-            if (password == null
-                || authReasonCode == SecurityAuthority.WRONG_PASSWORD
-                || authReasonCode == SecurityAuthority.WRONG_USERNAME)
-            {
-                //create a default credentials object
-                UserCredentials credentials = new UserCredentials();
-                credentials.setUserName(getAccountID().getUserID());
-
-                //request a password from the user
-                credentials = authority.obtainCredentials(
-                    getAccountID().getDisplayName(),
-                    credentials,
-                    authReasonCode);
-
-                // in case user has canceled the login window
-                if(credentials == null)
-                {
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.UNREGISTERED,
-                        RegistrationStateChangeEvent.REASON_USER_REQUEST, "");
-                    return;
-                }
-
-                //extract the password the user passed us.
-                char[] pass = credentials.getPassword();
-
-                // the user didn't provide us a password (canceled the operation)
-                if(pass == null)
-                {
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.UNREGISTERED,
-                        RegistrationStateChangeEvent.REASON_USER_REQUEST, "");
-                    return;
-                }
-                password = new String(pass);
-
-                if (credentials.isPasswordPersistent())
-                {
-                    YahooActivator.getProtocolProviderFactory()
-                        .storePassword(getAccountID(), password);
-                }
-            }
-
-            yahooSession = new YahooSession();
-            connectionListener = new YahooConnectionListener();
-            yahooSession.addSessionListener(connectionListener);
-
-            try
-            {
-                fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.REGISTERING,
-                        RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-
-                yahooSession.login(getAccountID().getUserID(), password);
-
-                if(yahooSession.getSessionStatus()==StatusConstants.MESSAGING)
-                {
-                    persistentPresence.fireProviderStatusChangeEvent(
-                        persistentPresence.getPresenceStatus(),
-                        persistentPresence.yahooStatusToPresenceStatus(
-                            yahooSession.getStatus()));
-
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.REGISTERED,
-                        RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-                }
-                else
-                {
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.UNREGISTERED,
-                        RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-                }
-            }
-            catch (LoginRefusedException ex)
-            {
-                if(ex.getStatus() == StatusConstants.STATUS_BADUSERNAME)
-                {
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.AUTHENTICATION_FAILED,
-                        RegistrationStateChangeEvent.REASON_NON_EXISTING_USER_ID,
-                        null);
-
-                    reregister(SecurityAuthority.WRONG_USERNAME);
-                }
-                else if(ex.getStatus() == StatusConstants.STATUS_BAD)
-                {
-                    YahooActivator.getProtocolProviderFactory()
-                        .storePassword(getAccountID(), null);
-
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.AUTHENTICATION_FAILED,
-                        RegistrationStateChangeEvent.REASON_AUTHENTICATION_FAILED,
-                        null);
-
-                    // Try to re-register and ask the user to retype the password.
-                    reregister(SecurityAuthority.WRONG_PASSWORD);
-                }
-                else if(ex.getStatus() == StatusConstants.STATUS_LOCKED)
-                {
-                    fireRegistrationStateChanged(
-                        getRegistrationState(),
-                        RegistrationState.AUTHENTICATION_FAILED,
-                        RegistrationStateChangeEvent.REASON_RECONNECTION_RATE_LIMIT_EXCEEDED,
-                        null);
-                }
-            }
-            catch (IOException ex)
-            {
-                fireRegistrationStateChanged(
-                    getRegistrationState(),
-                    RegistrationState.CONNECTION_FAILED,
-                    RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-            }
-            catch (DnssecRuntimeException ex)
-            {
-                fireRegistrationStateChanged(
-                    getRegistrationState(),
-                    RegistrationState.UNREGISTERED,
-                    RegistrationStateChangeEvent.REASON_USER_REQUEST, null);
-            }
-        }
-    }
-
-    /**
-     * Reconnects if fails fire connection failed.
-     * @param reasonCode the appropriate <tt>SecurityAuthority</tt> reasonCode,
-     * which would specify the reason for which we're re-calling the login.
-     */
-    void reregister(int reasonCode)
-    {
-        try
-        {
-            connectAndLogin(authority, reasonCode);
-        }
-        catch (OperationFailedException ex)
-        {
-            fireRegistrationStateChanged(
-                getRegistrationState(),
-                RegistrationState.CONNECTION_FAILED,
-                RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-        }
-    }
-
-    /**
-     * Ends the registration of this protocol provider with the service.
-     */
-    public void unregister()
-    {
-        unregisterInternal(true);
-    }
-
-    /**
-     * Unregister and fire the event if requested
-     * @param fireEvent boolean
-     */
-    void unregisterInternal(boolean fireEvent)
-    {
-        RegistrationState currRegState = getRegistrationState();
-
-        if(fireEvent)
-            fireRegistrationStateChanged(
-                currRegState,
-                RegistrationState.UNREGISTERING,
-                RegistrationStateChangeEvent.REASON_USER_REQUEST,
-                null);
-
-        try
-        {
-            if(connectionListener != null && yahooSession != null)
-            {
-                yahooSession.removeSessionListener(connectionListener);
-                connectionListener = null;
-            }
-
-            if((yahooSession != null)
-                    && (yahooSession.getSessionStatus() == StatusConstants.MESSAGING))
-                yahooSession.logout();
-        }
-        catch(Exception ex)
-        {
-            logger.error("Cannot logout! ", ex);
-        }
-
-        yahooSession = null;
-
-        if(fireEvent)
-            fireRegistrationStateChanged(
-                currRegState,
-                RegistrationState.UNREGISTERED,
-                RegistrationStateChangeEvent.REASON_USER_REQUEST,
-                null);
-    }
-
-    /*
-     * (non-Javadoc)
-     *
-     * @see net.java.sip.communicator.service.protocol.ProtocolProviderService#
-     * isSignallingTransportSecure()
-     */
-    public boolean isSignalingTransportSecure()
-    {
-        return false;
-    }
-
-    /**
-     * Returns the "transport" protocol of this instance used to carry the
-     * control channel for the current protocol service.
-     *
-     * @return The "transport" protocol of this instance: TCP.
-     */
-    public TransportProtocol getTransportProtocol()
-    {
-        return TransportProtocol.TCP;
-    }
-
-    /**
-     * Returns the short name of the protocol that the implementation of this
-     * provider is based upon (like SIP, Msn, ICQ/AIM, or others for
-     * example).
-     *
-     * @return a String containing the short name of the protocol this
-     *   service is taking care of.
-     */
-    public String getProtocolName()
-    {
-        return ProtocolNames.YAHOO;
-    }
-
-    /**
-     * Initialized the service implementation, and puts it in a sate where it
-     * could interoperate with other services. It is strongly recomended that
-     * properties in this Map be mapped to property names as specified by
-     * <tt>AccountProperties</tt>.
-     *
-     * @param screenname the account id/uin/screenname of the account that
-     * we're about to create
-     * @param accountID the identifier of the account that this protocol
-     * provider represents.
-     *
-     * @see net.java.sip.communicator.service.protocol.AccountID
-     */
-    protected void initialize(String screenname,
-                              AccountID accountID)
-    {
-        synchronized(initializationLock)
-        {
-            this.accountID = accountID;
-
-            addSupportedOperationSet(
-                OperationSetInstantMessageTransform.class,
-                new OperationSetInstantMessageTransformImpl());
-
-            //initialize the presence operationset
-            persistentPresence
-                = new OperationSetPersistentPresenceYahooImpl(this);
-            addSupportedOperationSet(
-                OperationSetPersistentPresence.class,
-                persistentPresence);
-            //register it once again for those that simply need presence
-            addSupportedOperationSet(
-                OperationSetPresence.class,
-                persistentPresence);
-
-            //initialize the IM operation set
-            addSupportedOperationSet(
-                OperationSetBasicInstantMessaging.class,
-                new OperationSetBasicInstantMessagingYahooImpl(this));
-
-            //initialize the multi user chat operation set
-            addSupportedOperationSet(
-                OperationSetAdHocMultiUserChat.class,
-                new OperationSetAdHocMultiUserChatYahooImpl(this));
-
-            //initialize the typing notifications operation set
-            typingNotifications
-                = new OperationSetTypingNotificationsYahooImpl(this);
-            addSupportedOperationSet(
-                OperationSetTypingNotifications.class,
-                typingNotifications);
-
-            addSupportedOperationSet(
-                OperationSetFileTransfer.class,
-                new OperationSetFileTransferYahooImpl(this));
-
-            isInitialized = true;
-        }
-    }
-
-    /**
-     * Makes the service implementation close all open sockets and release
-     * any resources that it might have taken and prepare for
-     * shutdown/garbage collection.
-     */
-    public void shutdown()
-    {
-        synchronized(initializationLock){
-            unregisterInternal(false);
-            yahooSession = null;
-            isInitialized = false;
-        }
-    }
-
-    /**
-     * Returns true if the provider service implementation is initialized and
-     * ready for use by other services, and false otherwise.
-     *
-     * @return true if the provider is initialized and ready for use and false
-     * otherwise
-     */
-    public boolean isInitialized()
-    {
-        return isInitialized;
-    }
-
-    /**
-     * Returns the AccountID that uniquely identifies the account represented
-     * by this instance of the ProtocolProviderService.
-     * @return the id of the account represented by this provider.
-     */
-    public AccountID getAccountID()
-    {
-        return accountID;
-    }
-
-    /**
-     * Returns the Yahoo<tt>Session</tt>opened by this provider
-     * @return a reference to the <tt>Session</tt> last opened by this
-     * provider.
-     */
-    YahooSession getYahooSession()
-    {
-        return yahooSession;
-    }
-
-    /**
-     * Creates a RegistrationStateChange event corresponding to the specified
-     * old and new states and notifies all currently registered listeners.
-     *
-     * @param oldState the state that the provider had before the change
-     * occurred
-     * @param newState the state that the provider is currently in.
-     * @param reasonCode a value corresponding to one of the REASON_XXX fields
-     * of the RegistrationStateChangeEvent class, indicating the reason for
-     * this state transition.
-     * @param reason a String further explaining the reason code or null if
-     * no such explanation is necessary.
-     */
-    @Override
-    public void fireRegistrationStateChanged( RegistrationState oldState,
-                                               RegistrationState newState,
-                                               int               reasonCode,
-                                               String            reason)
-    {
-        if(newState.equals(RegistrationState.UNREGISTERED))
-        {
-            unregisterInternal(false);
-            yahooSession = null;
-        }
-
-        super.fireRegistrationStateChanged(oldState, newState, reasonCode, reason);
-    }
-
-    /**
-     * Listens when we are logged in the server
-     * or incoming exception in the lib impl.
-     */
-    private class YahooConnectionListener
-        extends SessionAdapter
-    {
-        /**
-         * Yahoo has logged us off the system, or the connection was lost
-         *
-         * @param ev the event
-         */
-        @Override
-        public void connectionClosed(SessionEvent ev)
-        {
-            if(isRegistered())
-                fireRegistrationStateChanged(
-                    getRegistrationState(),
-                    RegistrationState.CONNECTION_FAILED,
-                    RegistrationStateChangeEvent.REASON_NOT_SPECIFIED, null);
-        }
-
-        /**
-         * Some exception has occurred in stack.
-         * @param ev
-         */
-        @Override
-        public void inputExceptionThrown(SessionExceptionEvent ev)
-        {
-            if(ev.getException() instanceof YMSG9BadFormatException)
-            {
-                logger.error("Yahoo protocol exception occured exception",
-                    ev.getException());
-                logger.error("Yahoo protocol exception occured exception cause",
-                    ev.getException().getCause());
-            }
-            else
-                    logger.error(
-                        "Yahoo protocol exception occured", ev.getException());
-
-            unregisterInternal(false);
-            if(isRegistered())
-                fireRegistrationStateChanged(
-                    getRegistrationState(),
-                    RegistrationState.UNREGISTERED,
-                    RegistrationStateChangeEvent.REASON_INTERNAL_ERROR, null);
-        }
-    }
-
-    /**
-     * Returns the yahoo protocol icon.
-     * @return the yahoo protocol icon
-     */
-    public ProtocolIcon getProtocolIcon()
-    {
-        return yahooIcon;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/RootContactGroupYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/RootContactGroupYahooImpl.java
deleted file mode 100644
index 856bb30..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/RootContactGroupYahooImpl.java
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * A dummy ContactGroup implementation representing the ContactList root for
- * Yahoo contact lists.
- * @author Damian Minkov
- */
-public class RootContactGroupYahooImpl
-    extends AbstractContactGroupYahooImpl
-{
-    private String ROOT_CONTACT_GROUP_NAME = "ContactListRoot";
-    private List<ContactGroup> subGroups = new LinkedList<ContactGroup>();
-    private boolean isResolved = false;
-
-    /**
-     * An empty list that we use when returning an iterator.
-     */
-    private List<Contact> dummyContacts = new LinkedList<Contact>();
-
-    private final ProtocolProviderServiceYahooImpl protocolProvider;
-
-    /**
-     * Creates a ContactGroup instance.
-     */
-    RootContactGroupYahooImpl(ProtocolProviderServiceYahooImpl protocolProvider)
-    {
-        this.protocolProvider = protocolProvider;
-    }
-
-    /**
-     * The ContactListRoot is the only group that can contain subgroups.
-     *
-     * @return true (always)
-     */
-    public boolean canContainSubgroups()
-    {
-        return true;
-    }
-
-    /**
-     * Returns the name of this group which is always
-     * <tt>ROOT_CONTACT_GROUP_NAME</tt>.
-     *
-     * @return a String containing the name of this group.
-     */
-    public String getGroupName()
-    {
-        return ROOT_CONTACT_GROUP_NAME;
-    }
-
-    /**
-     * Adds the specified group to the end of the list of sub groups.
-     * @param group the group to add.
-     */
-    void addSubGroup(ContactGroupYahooImpl group)
-    {
-        subGroups.add(group);
-    }
-
-    /**
-     * Removes the specified from the list of sub groups
-     * @param group the group to remove.
-     */
-    void removeSubGroup(ContactGroupYahooImpl group)
-    {
-        removeSubGroup(subGroups.indexOf(group));
-    }
-
-    /**
-     * Removes the sub group with the specified index.
-     * @param index the index of the group to remove
-     */
-    void removeSubGroup(int index)
-    {
-        subGroups.remove(index);
-    }
-
-    /**
-     * Returns the number of subgroups contained by this
-     * <tt>RootContactGroupImpl</tt>.
-     *
-     * @return an int indicating the number of subgroups that this
-     *   ContactGroup contains.
-     */
-    public int countSubgroups()
-    {
-        return subGroups.size();
-    }
-
-    /**
-     * Returns null as this is the root contact group.
-     * @return null as this is the root contact group.
-     */
-    public ContactGroup getParentContactGroup()
-    {
-        return null;
-    }
-
-    /**
-     * Returns the subgroup with the specified index.
-     *
-     * @param index the index of the <tt>ContactGroup</tt> to retrieve.
-     * @return the <tt>ContactGroup</tt> with the specified index.
-     */
-    public ContactGroup getGroup(int index)
-    {
-        return subGroups.get(index);
-    }
-
-    /**
-     * Returns the subgroup with the specified name.
-     * @param groupName the name of the <tt>ContactGroup</tt> to retrieve.
-     * @return the <tt>ContactGroup</tt> with the specified index.
-     */
-    public ContactGroup getGroup(String groupName)
-    {
-        Iterator<ContactGroup> subgroups = subgroups();
-        while (subgroups.hasNext())
-        {
-            ContactGroup grp = subgroups.next();
-
-            if (grp.getGroupName().equals(groupName))
-                return grp;
-        }
-
-        return null;
-    }
-
-    /**
-     * Returns an iterator over the sub groups that this
-     * <tt>ContactGroup</tt> contains.
-     *
-     * @return a java.util.Iterator over the <tt>ContactGroup</tt>
-     *   children of this group (i.e. subgroups).
-     */
-    public Iterator<ContactGroup> subgroups()
-    {
-        return subGroups.iterator();
-    }
-
-    /**
-     * Returns the number, which is always 0, of <tt>Contact</tt> members
-     * of this <tt>ContactGroup</tt>
-     * @return an int indicating the number of <tt>Contact</tt>s, members
-     * of this <tt>ContactGroup</tt>.
-     */
-    public int countContacts()
-    {
-        return dummyContacts.size();
-    }
-
-    /**
-     * Returns an Iterator over all contacts, member of this
-     * <tt>ContactGroup</tt>.
-     * @return a java.util.Iterator over all contacts inside this
-     * <tt>ContactGroup</tt>
-     */
-    public Iterator<Contact> contacts()
-    {
-        return dummyContacts.iterator();
-    }
-
-    /**
-     * Returns the <tt>Contact</tt> with the specified address or
-     * identifier.
-     * @param id the addres or identifier of the <tt>Contact</tt> we are
-     * looking for.
-     * @return the <tt>Contact</tt> with the specified id or address.
-     */
-    public Contact getContact(String id)
-    {
-        //no contacts in the root group for this yahoo impl.
-        return null;
-    }
-
-
-    /**
-     * Returns a string representation of the root contact group that contains
-     * all subgroups and subcontacts of this group.
-     *
-     * @return  a string representation of this root contact group.
-     */
-    @Override
-    public String toString()
-    {
-        StringBuffer buff = new StringBuffer(getGroupName());
-        buff.append(".subGroups=" + countSubgroups() + ":\n");
-
-        Iterator<ContactGroup> subGroups = subgroups();
-        while (subGroups.hasNext())
-        {
-            ContactGroup group = subGroups.next();
-            buff.append(group.toString());
-            if (subGroups.hasNext())
-                buff.append("\n");
-        }
-        return buff.toString();
-    }
-
-    /**
-     * Returns the protocol provider that this group belongs to.
-     * @return a regerence to the ProtocolProviderService instance that this
-     * ContactGroup belongs to.
-     */
-    public ProtocolProviderService getProtocolProvider()
-    {
-        return protocolProvider;
-    }
-
-    /**
-     * Determines whether or not this contact group is being stored by the
-     * server. Non persistent contact groups exist for the sole purpose of
-     * containing non persistent contacts.
-     * @return true if the contact group is persistent and false otherwise.
-     */
-    public boolean isPersistent()
-    {
-        return true;
-    }
-
-    /**
-     * Returns null as no persistent data is required and the group name is
-     * sufficient for restoring the contact.
-     * <p>
-     * @return null as no such data is needed.
-     */
-    public String getPersistentData()
-    {
-        return null;
-    }
-
-    /**
-     * Determines whether or not this group has been resolved against the
-     * server. Unresolved groups are used when initially loading a contact
-     * list that has been stored in a local file until the presence operation
-     * set has managed to retrieve all the contact list from the server and has
-     * properly mapped groups to their on-line buddies.
-     * @return true if the group has been resolved (mapped against a buddy)
-     * and false otherwise.
-     */
-    public boolean isResolved()
-    {
-        return isResolved;
-    }
-
-    /**
-     * Returns a <tt>String</tt> that uniquely represnets the group. In this we
-     * use the name of the group as an identifier. This may cause problems
-     * though, in clase the name is changed by some other application between
-     * consecutive runs of the sip-communicator.
-     *
-     * @return a String representing this group in a unique and persistent
-     * way.
-     */
-    public String getUID()
-    {
-        return getGroupName();
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/ServerStoredContactListYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/ServerStoredContactListYahooImpl.java
deleted file mode 100644
index 6bfb239..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/ServerStoredContactListYahooImpl.java
+++ /dev/null
@@ -1,1278 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.service.protocol.event.*;
-import net.java.sip.communicator.util.*;
-import ymsg.network.*;
-import ymsg.network.event.*;
-
-/**
- * This class encapsulates the Roster class. Once created, it will
- * register itself as a listener to the encapsulated Roster and modify it's
- * local copy of Contacts and ContactGroups every time an event is generated
- * by the underlying framework. The class would also generate
- * corresponding sip-communicator events to all events coming from smack.
- *
- * @author Damian Minkov
- * @author Emil Ivov
- */
-public class ServerStoredContactListYahooImpl
-{
-    private static final Logger logger =
-        Logger.getLogger(ServerStoredContactListYahooImpl.class);
-
-    /**
-     * If there is no group and we add contact with no parent
-     * a default group is created with name : DEFAULT_GROUP_NAME
-     */
-    private static final String DEFAULT_GROUP_NAME = "General";
-
-    /**
-     * The root contagroup. The container for all yahoo buddies and groups.
-     */
-    private final RootContactGroupYahooImpl rootGroup;
-
-    /**
-     * The operation set that created us and that we could use when dispatching
-     * subscription events.
-     */
-    private final OperationSetPersistentPresenceYahooImpl parentOperationSet;
-
-    /**
-     * The provider that is on top of us.
-     */
-    private final ProtocolProviderServiceYahooImpl yahooProvider;
-
-    private YahooSession yahooSession = null;
-
-    /**
-     * Listeners that would receive event notifications for changes in group
-     * names or other properties, removal or creation of groups.
-     */
-    private Vector<ServerStoredGroupListener> serverStoredGroupListeners
-        = new Vector<ServerStoredGroupListener>();
-
-    private ContactListModListenerImpl contactListModListenerImpl
-        = new ContactListModListenerImpl();
-
-    /**
-     * Handler for incoming authorization requests.
-     */
-    private AuthorizationHandler handler = null;
-
-    private Hashtable<String, String> addedCustomYahooIds
-        = new Hashtable<String, String>();
-
-    /**
-     * Creates a ServerStoredContactList wrapper for the specified BuddyList.
-     *
-     * @param parentOperationSet the operation set that created us and that
-     * we could use for dispatching subscription events
-     * @param provider the provider that has instantiated us.
-     */
-    ServerStoredContactListYahooImpl(
-        OperationSetPersistentPresenceYahooImpl parentOperationSet,
-        ProtocolProviderServiceYahooImpl        provider)
-    {
-        //We need to init these as early as possible to ensure that the provider
-        //and the operationsset would not be null in the incoming events.
-        this.parentOperationSet = parentOperationSet;
-
-        this.yahooProvider = provider;
-        this.rootGroup = new RootContactGroupYahooImpl(this.yahooProvider);
-    }
-
-    /**
-     * Handler for incoming authorization requests.
-     *
-     * @param handler an instance of an AuthorizationHandler for
-     *   authorization requests coming from other users requesting
-     *   permission add us to their contact list.
-     */
-    public void setAuthorizationHandler(AuthorizationHandler handler)
-    {
-        this.handler = handler;
-    }
-
-    /**
-     * Returns the root group of the contact list.
-     *
-     * @return the root ContactGroup for the ContactList
-     */
-    public ContactGroup getRootGroup()
-    {
-        return rootGroup;
-    }
-
-    /**
-     * Registers the specified group listener so that it would receive events
-     * on group modification/creation/destruction.
-     * @param listener the ServerStoredGroupListener to register for group
-     * events
-     */
-    void addGroupListener(ServerStoredGroupListener listener)
-    {
-        synchronized(serverStoredGroupListeners)
-        {
-            if(!serverStoredGroupListeners.contains(listener))
-                serverStoredGroupListeners.add(listener);
-        }
-    }
-
-    /**
-     * Removes the specified group listener so that it won't receive further
-     * events on group modification/creation/destruction.
-     * @param listener the ServerStoredGroupListener to unregister
-     */
-    void removeGroupListener(ServerStoredGroupListener listener)
-    {
-        synchronized(serverStoredGroupListeners)
-        {
-            this.serverStoredGroupListeners.remove(listener);
-        }
-    }
-
-    /**
-     * Creates the corresponding event and notifies all
-     * <tt>ServerStoredGroupListener</tt>s that the source group has been
-     * removed, changed, renamed or whatever happened to it.
-     * @param group the ContactGroup that has been created/modified/removed
-     * @param eventID the id of the event to generate.
-     */
-    private void fireGroupEvent(ContactGroupYahooImpl group, int eventID)
-    {
-        //bail out if no one's listening
-        if(parentOperationSet == null){
-            if (logger.isDebugEnabled())
-                logger.debug("No presence op. set available. Bailing out.");
-            return;
-        }
-
-        ServerStoredGroupEvent evt = new ServerStoredGroupEvent(
-                  group
-                , eventID
-                , parentOperationSet.getServerStoredContactListRoot()
-                , yahooProvider
-                , parentOperationSet);
-
-        if (logger.isTraceEnabled())
-            logger.trace("Will dispatch the following grp event: " + evt);
-
-        Iterable<ServerStoredGroupListener> listeners;
-        synchronized (serverStoredGroupListeners)
-        {
-            listeners
-                = new ArrayList<ServerStoredGroupListener>(
-                        serverStoredGroupListeners);
-        }
-
-        for (ServerStoredGroupListener listener : listeners)
-        {
-            try{
-                if (eventID == ServerStoredGroupEvent.GROUP_REMOVED_EVENT)
-                    listener.groupRemoved(evt);
-                else if (eventID == ServerStoredGroupEvent.GROUP_RENAMED_EVENT)
-                    listener.groupNameChanged(evt);
-                else if (eventID == ServerStoredGroupEvent.GROUP_CREATED_EVENT)
-                    listener.groupCreated(evt);
-                else if (eventID == ServerStoredGroupEvent.GROUP_RESOLVED_EVENT)
-                    listener.groupResolved(evt);
-            }catch(Exception ex){
-                logger.warn("Unhandled Exception! ", ex);
-            }
-        }
-    }
-
-    /**
-     * Make the parent persistent presence operation set dispatch a contact
-     * removed event.
-     * @param parentGroup the group where that the removed contact belonged to.
-     * @param contact the contact that was removed.
-     */
-    private void fireContactRemoved( ContactGroup parentGroup,
-                                     ContactYahooImpl contact)
-    {
-        //bail out if no one's listening
-        if(parentOperationSet == null){
-            if (logger.isDebugEnabled())
-                logger.debug("No presence op. set available. Bailing out.");
-            return;
-        }
-
-        //dispatch
-        parentOperationSet.fireSubscriptionEvent(
-            contact, parentGroup, SubscriptionEvent.SUBSCRIPTION_REMOVED);
-    }
-
-    /**
-     * Make the parent persistent presence operation set dispatch a subscription
-     * moved event.
-     * @param oldParentGroup the group where the source contact was located
-     * before being moved
-     * @param newParentGroup the group that the source contact is currently in.
-     * @param contact the contact that was added
-     */
-    private void fireContactMoved( ContactGroup oldParentGroup,
-                                   ContactGroupYahooImpl newParentGroup,
-                                   ContactYahooImpl contact)
-    {
-        //bail out if no one's listening
-        if(parentOperationSet == null){
-            if (logger.isDebugEnabled())
-                logger.debug("No presence op. set available. Bailing out.");
-            return;
-        }
-
-        //dispatch
-        parentOperationSet.fireSubscriptionMovedEvent(
-            contact, oldParentGroup, newParentGroup);
-    }
-
-    /**
-     * Returns a reference to the provider that created us.
-     * @return a reference to a ProtocolProviderServiceImpl instance.
-     */
-    ProtocolProviderServiceYahooImpl getParentProvider()
-    {
-        return yahooProvider;
-    }
-
-    /**
-     * Returns the ConntactGroup with the specified name or null if no such
-     * group was found.
-     * <p>
-     * @param name the name of the group we're looking for.
-     * @return a reference to the ContactGroupYahooImpl instance we're looking
-     * for or null if no such group was found.
-     */
-    public ContactGroupYahooImpl findContactGroup(String name)
-    {
-        String nameToLookFor = replaceIllegalChars(name);
-        Iterator<ContactGroup> contactGroups = rootGroup.subgroups();
-
-        while(contactGroups.hasNext())
-        {
-            ContactGroupYahooImpl contactGroup
-                = (ContactGroupYahooImpl) contactGroups.next();
-
-            if (contactGroup.getGroupName().equals(nameToLookFor))
-                return contactGroup;
-        }
-
-        return null;
-    }
-
-    /**
-     * Returns the Contact with the specified id or null if
-     * no such id was found.
-     *
-     * @param id the id of the contact to find.
-     * @return the <tt>Contact</tt> carrying the specified
-     * <tt>screenName</tt> or <tt>null</tt> if no such contact exits.
-     */
-    public ContactYahooImpl findContactById(String id)
-    {
-        Iterator<ContactGroup> contactGroups = rootGroup.subgroups();
-        ContactYahooImpl result = null;
-
-        while(contactGroups.hasNext())
-        {
-            ContactGroupYahooImpl contactGroup
-                = (ContactGroupYahooImpl) contactGroups.next();
-
-            result = contactGroup.findContact(id);
-
-            if (result != null)
-                return result;
-        }
-
-        return null;
-    }
-
-    /**
-     * Returns the Contact corresponding to the specified <tt>YahooUser</tt>
-     * or null if no such id was found.
-     *
-     * @param yahooUser the YahooUser of the contact to find.
-     * @return the <tt>Contact</tt> carrying the specified
-     * <tt>screenName</tt> or <tt>null</tt> if no such contact exits.
-     */
-    public ContactYahooImpl findContactByYahooUser(YahooUser yahooUser)
-    {
-        return findContactById(yahooUser.getId().toLowerCase());
-    }
-
-    /**
-     * Returns the ContactGroup containing the specified contact or null
-     * if no such group or contact exist.
-     *
-     * @param child the contact whose parent group we're looking for.
-     * @return the <tt>ContactGroup</tt> containing the specified
-     * <tt>contact</tt> or <tt>null</tt> if no such groupo or contact
-     * exist.
-     */
-    public ContactGroup findContactGroup(ContactYahooImpl child)
-    {
-        Iterator<ContactGroup> contactGroups = rootGroup.subgroups();
-        String contactAddress = child.getAddress();
-
-        while(contactGroups.hasNext())
-        {
-            ContactGroupYahooImpl contactGroup
-                = (ContactGroupYahooImpl) contactGroups.next();
-
-            if( contactGroup.findContact(contactAddress)!= null)
-                return contactGroup;
-        }
-
-        return null;
-    }
-
-    /**
-     * Adds a new contact with the specified screenname to the list under a
-     * default location.
-     * @param id the id of the contact to add.
-     * @throws OperationFailedException
-     */
-    public void addContact(String id)
-        throws OperationFailedException
-    {
-        ContactGroupYahooImpl parent = getFirstPersistentGroup();
-
-        if(parent == null)
-        {
-            // if there is no group create it
-            parent = createUnresolvedContactGroup(DEFAULT_GROUP_NAME);
-        }
-
-        addContact(parent, id);
-    }
-
-    /**
-     * Adds a new contact with the specified screenname to the list under the
-     * specified group.
-     * @param id the id of the contact to add.
-     * @param parent the group under which we want the new contact placed.
-     * @throws OperationFailedException if the contact already exist
-     */
-    public void addContact(final ContactGroupYahooImpl parent, String id)
-        throws OperationFailedException
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Adding contact " + id + " to parent=" + parent);
-
-        //if the contact is already in the contact list and is not volatile,
-        //then only broadcast an event
-        ContactYahooImpl existingContact = findContactById(id);
-
-        if( existingContact != null
-            && existingContact.isPersistent() )
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("Contact " + id + " already exists.");
-            throw new OperationFailedException(
-                "Contact " + id + " already exists.",
-                OperationFailedException.SUBSCRIPTION_ALREADY_EXISTS);
-        }
-
-        if(id.indexOf("@") > -1 )
-            addedCustomYahooIds.put(YahooSession.getYahooUserID(id), id);
-
-        try
-        {
-            yahooSession.addFriend(YahooSession.getYahooUserID(id),
-                                   parent.getGroupName());
-        }
-        catch(IOException ex)
-        {
-            throw new OperationFailedException(
-                "Contact cannot be added " + id,
-                OperationFailedException.NETWORK_FAILURE);
-        }
-    }
-
-    /**
-     * Creates a non persistent contact for the specified address. This would
-     * also create (if necessary) a group for volatile contacts that would not
-     * be added to the server stored contact list. This method would have no
-     * effect on the server stored contact list.
-     * @param id the address of the contact to create.
-     * @return the newly created volatile <tt>ContactImpl</tt>
-     */
-    ContactYahooImpl createVolatileContact(String id)
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Creating volatile contact " + id);
-        ContactYahooImpl newVolatileContact =
-            new ContactYahooImpl(id, this, false, false, true);
-
-        //Check whether a volatile group already exists and if not create one
-        ContactGroupYahooImpl theVolatileGroup = getNonPersistentGroup();
-
-        //if the parent group is null then create it
-        if (theVolatileGroup == null)
-        {
-            theVolatileGroup = new VolatileContactGroupYahooImpl(
-                YahooActivator.getResources().getI18NString(
-                    "service.gui.NOT_IN_CONTACT_LIST_GROUP_NAME"),
-                this);
-
-            theVolatileGroup.addContact(newVolatileContact);
-
-            this.rootGroup.addSubGroup(theVolatileGroup);
-
-            fireGroupEvent(theVolatileGroup
-                           , ServerStoredGroupEvent.GROUP_CREATED_EVENT);
-        }
-        else
-        {
-            theVolatileGroup.addContact(newVolatileContact);
-
-            fireContactAdded(theVolatileGroup, newVolatileContact);
-        }
-
-        return newVolatileContact;
-    }
-
-
-    /**
-     * Creates a non resolved contact for the specified address and inside the
-     * specified group. The newly created contact would be added to the local
-     * contact list as a standard contact but when an event is received from the
-     * server concerning this contact, then it will be reused and only its
-     * isResolved field would be updated instead of creating the whole contact
-     * again.
-     *
-     * @param parentGroup the group where the unersolved contact is to be
-     * created
-     * @param id the Address of the contact to create.
-     * @return the newly created unresolved <tt>ContactImpl</tt>
-     */
-    ContactYahooImpl createUnresolvedContact(ContactGroup parentGroup,
-                                            String id)
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Creating unresolved contact " + id
-                        + " to parent=" + parentGroup);
-
-        ContactYahooImpl existingContact = findContactById(id);
-
-        if( existingContact != null)
-        {
-            return existingContact;
-        }
-
-        ContactYahooImpl newUnresolvedContact
-            = new ContactYahooImpl(id, this, false, true, false);
-
-        if(parentGroup instanceof ContactGroupYahooImpl)
-            ((ContactGroupYahooImpl)parentGroup).
-                addContact(newUnresolvedContact);
-
-        fireContactAdded(parentGroup, newUnresolvedContact);
-
-        return newUnresolvedContact;
-    }
-
-    /**
-     * Creates a non resolved contact group for the specified name. The newly
-     * created group would be added to the local contact list as any other group
-     * but when an event is received from the server concerning this group, then
-     * it will be reused and only its isResolved field would be updated instead
-     * of creating the whole group again.
-     * <p>
-     * @param groupName the name of the group to create.
-     * @return the newly created unresolved <tt>ContactGroupImpl</tt>
-     */
-    ContactGroupYahooImpl createUnresolvedContactGroup(String groupName)
-    {
-        ContactGroupYahooImpl existingGroup = findContactGroup(groupName);
-
-        if( existingGroup != null )
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("ContactGroup " + groupName + " already exists.");
-            return existingGroup;
-        }
-
-        ContactGroupYahooImpl newUnresolvedGroup =
-            new ContactGroupYahooImpl(groupName, this);
-
-        this.rootGroup.addSubGroup(newUnresolvedGroup);
-
-        fireGroupEvent(newUnresolvedGroup
-                        , ServerStoredGroupEvent.GROUP_CREATED_EVENT);
-
-        return newUnresolvedGroup;
-    }
-
-    /**
-     * Creates the specified group on the server stored contact list.
-     * @param groupName a String containing the name of the new group.
-     * @throws OperationFailedException with code CONTACT_GROUP_ALREADY_EXISTS
-     * if the group we're trying to create is already in our contact list.
-     */
-    public void createGroup(String groupName)
-        throws OperationFailedException
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Creating group: " + groupName);
-
-        ContactGroupYahooImpl existingGroup = findContactGroup(groupName);
-
-        if( existingGroup != null && existingGroup.isPersistent() )
-        {
-            if (logger.isDebugEnabled())
-                logger.debug("ContactGroup " + groupName + " already exists.");
-            throw new OperationFailedException(
-                           "ContactGroup " + groupName + " already exists.",
-                OperationFailedException.CONTACT_GROUP_ALREADY_EXISTS);
-        }
-
-        // create unresolved group if friend is added - group will be resolved
-        createUnresolvedContactGroup(groupName);
-    }
-
-    /**
-     * Removes the specified group from the buddy list.
-     * @param groupToRemove the group that we'd like removed.
-     */
-    @SuppressWarnings("unchecked") //jymsg legacy code
-    public void removeGroup(ContactGroupYahooImpl groupToRemove)
-    {
-        // to remove group just remove all the contacts in it
-
-        if (logger.isTraceEnabled())
-            logger.trace("removing group " + groupToRemove);
-
-        // if its not persistent group just remove it
-        if(!groupToRemove.isPersistent() || !groupToRemove.isResolved())
-        {
-            rootGroup.removeSubGroup(groupToRemove);
-            fireGroupEvent(groupToRemove,
-                ServerStoredGroupEvent.GROUP_REMOVED_EVENT);
-            return;
-        }
-
-        Vector<YahooUser> contacts
-            = groupToRemove.getSourceGroup().getMembers();
-
-        if(contacts.size() == 0)
-        {
-            // the group is empty just remove it
-            rootGroup.removeSubGroup(groupToRemove);
-            fireGroupEvent(groupToRemove,
-                ServerStoredGroupEvent.GROUP_REMOVED_EVENT);
-            return;
-        }
-
-        /*
-         * ContactGroupYahooImpl#getGroupName() isn't a plain getter so
-         * performance-wise we're better off not calling it multiple times in
-         * the following loop.
-         */
-        String groupToRemoveName = groupToRemove.getGroupName();
-
-        for (YahooUser item : contacts)
-        {
-            try
-            {
-                yahooSession.removeFriend(item.getId(), groupToRemoveName);
-            }
-            catch(IOException ex)
-            {
-                if (logger.isInfoEnabled())
-                    logger.info("Cannot Remove contact " + item.getId());
-            }
-        }
-    }
-
-    /**
-     * Removes a contact from the serverside list
-     * Event will come for successful operation
-     * @param contactToRemove ContactYahooImpl
-     */
-    void removeContact(ContactYahooImpl contactToRemove)
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Removing yahoo contact "
-                        + contactToRemove.getSourceContact());
-
-        if(contactToRemove.isVolatile())
-        {
-            ContactGroupYahooImpl parent =
-                (ContactGroupYahooImpl)contactToRemove.getParentContactGroup();
-
-            parent.removeContact(contactToRemove);
-            fireContactRemoved(parent, contactToRemove);
-            return;
-        }
-
-        try
-        {
-            yahooSession.removeFriend(
-                contactToRemove.getSourceContact().getId(),
-                contactToRemove.getParentContactGroup().getGroupName());
-        }
-        catch(IOException ex)
-        {
-            if (logger.isInfoEnabled())
-                logger.info("Cannot Remove contact " + contactToRemove);
-        }
-    }
-
-    /**
-     * Renames the specified group according to the specified new name..
-     * @param groupToRename the group that we'd like removed.
-     * @param newName the new name of the group
-     */
-    public void renameGroup(ContactGroupYahooImpl groupToRename, String newName)
-    {
-        // not working
-        /*
-            try
-            {
-                yahooSession.renameGroup(groupToRename.getGroupName(), newName);
-            }
-            catch(IOException ex)
-            {
-                if (logger.isInfoEnabled())
-                    logger.info("Cannot rename group " + groupToRename);
-            }
-
-            fireGroupEvent(groupToRename,
-                           ServerStoredGroupEvent.GROUP_RENAMED_EVENT);
-         */
-    }
-
-    /**
-     * Moves the specified <tt>contact</tt> to the group indicated by
-     * <tt>newParent</tt>.
-     * @param contact the contact that we'd like moved under the new group.
-     * @param newParent the group where we'd like the parent placed.
-     */
-    public void moveContact(ContactYahooImpl contact,
-                            ContactGroupYahooImpl newParent)
-    {
-        String userID = contact.getID();
-        try
-        {
-            contactListModListenerImpl.
-                waitForMove(userID,
-                contact.getParentContactGroup().getGroupName());
-
-            yahooSession.addFriend(
-                userID,
-                newParent.getGroupName());
-        }
-        catch(IOException ex)
-        {
-            contactListModListenerImpl.removeWaitForMove(userID);
-            logger.error("Contact cannot be added " + ex.getMessage());
-        }
-    }
-
-    /**
-     * Returns the volatile group
-     *
-     * @return ContactGroupYahooImpl
-     */
-    private ContactGroupYahooImpl getNonPersistentGroup()
-    {
-        for (int i = 0; i < getRootGroup().countSubgroups(); i++)
-        {
-            ContactGroupYahooImpl gr =
-                (ContactGroupYahooImpl)getRootGroup().getGroup(i);
-
-            if(!gr.isPersistent())
-                return gr;
-        }
-
-        return null;
-    }
-
-    /**
-     * Returns the first persistent group
-     *
-     * @return ContactGroupIcqImpl
-     */
-    private ContactGroupYahooImpl getFirstPersistentGroup()
-    {
-        for (int i = 0; i < getRootGroup().countSubgroups(); i++)
-        {
-            ContactGroupYahooImpl gr =
-                (ContactGroupYahooImpl)getRootGroup().getGroup(i);
-
-            if(gr.isPersistent())
-                return gr;
-        }
-
-        return null;
-    }
-
-    /**
-     * Make the parent persistent presence operation set dispatch a contact
-     * added event.
-     * @param parentGroup the group where the new contact was added
-     * @param contact the contact that was added
-     */
-    void fireContactAdded( ContactGroup parentGroup,
-                                   ContactYahooImpl contact)
-    {
-        //bail out if no one's listening
-        if(parentOperationSet == null){
-            if (logger.isDebugEnabled())
-                logger.debug("No presence op. set available. Bailing out.");
-            return;
-        }
-
-        //dispatch
-        parentOperationSet.fireSubscriptionEvent(
-            contact, parentGroup, SubscriptionEvent.SUBSCRIPTION_CREATED);
-    }
-
-    /**
-     * Make the parent persistent presence operation set dispatch a contact
-     * resolved event.
-     * @param parentGroup the group that the resolved contact belongs to.
-     * @param contact the contact that was resolved
-     */
-    void fireContactResolved( ContactGroup parentGroup,
-                                      ContactYahooImpl contact)
-    {
-        //bail out if no one's listening
-        if(parentOperationSet == null){
-            if (logger.isDebugEnabled())
-                logger.debug("No presence op. set available. Bailing out.");
-            return;
-        }
-
-        //dispatch
-        parentOperationSet.fireSubscriptionEvent(
-            contact, parentGroup, SubscriptionEvent.SUBSCRIPTION_RESOLVED);
-    }
-
-    /**
-     * When the protocol is online this method is used to fill or resolve
-     * the current contact list
-     */
-    @SuppressWarnings("unchecked") //jymsg legacy code
-    private void initList()
-    {
-        if (logger.isTraceEnabled())
-            logger.trace("Start init list of "
-                        + yahooProvider.getAccountID().getUserID());
-
-        for (YahooGroup item : yahooSession.getGroups())
-        {
-            ContactGroupYahooImpl group = findContactGroup(item.getName());
-
-            if(group == null)
-            {
-                // create the group as it doesn't exist
-                group = new ContactGroupYahooImpl(
-                                    item, item.getMembers(), this, true);
-
-                rootGroup.addSubGroup(group);
-
-                //tell listeners about the added group
-                fireGroupEvent(group,
-                               ServerStoredGroupEvent.GROUP_CREATED_EVENT);
-            }
-            else
-            {
-                // the group exist so just resolved. The group will check and
-                // create or resolve its entries
-                group.setResolved(item);
-
-                //fire an event saying that the group has been resolved
-                fireGroupEvent(group
-                               , ServerStoredGroupEvent.GROUP_RESOLVED_EVENT);
-
-                /** @todo  if something to delete . delete it */
-            }
-
-            if (logger.isTraceEnabled())
-                logger.trace("Init of group done! : " + group);
-        }
-    }
-
-    /**
-     * @param name Name of the group to search
-     * @return The yahoo group with given name
-     */
-    private YahooGroup findGroup(String name)
-    {
-        for (YahooGroup elem : yahooSession.getGroups())
-        {
-            if(elem.getName().equals(name))
-                return elem;
-        }
-        return null;
-    }
-
-    /**
-     * Process incoming authorization requests.
-     * @param ev the event to process.
-     */
-    void processAuthorizationRequest(SessionAuthorizationEvent ev)
-    {
-        if(handler == null)
-            return;
-
-        Contact srcContact = findContactById(ev.getFrom());
-
-        // if there is no such contact we create it as
-        // volatile so we can fire notification
-        // and then if accepted add it in the protocol
-        // so we can receive its states
-        boolean isCurrentlyCreated = false;
-        if(srcContact == null)
-        {
-            srcContact = createVolatileContact(ev.getFrom());
-            isCurrentlyCreated = true;
-        }
-
-        AuthorizationRequest authRequest = new AuthorizationRequest();
-            authRequest.setReason(ev.getMessage());
-
-        AuthorizationResponse authResponse =
-            handler.processAuthorisationRequest(
-                authRequest, srcContact);
-
-        if (authResponse.getResponseCode() == AuthorizationResponse.IGNORE)
-        {
-            return;
-        }
-        else if (authResponse.getResponseCode() == AuthorizationResponse.REJECT)
-        {
-            removeContact((ContactYahooImpl)srcContact);
-            try
-            {
-                yahooSession.rejectFriendAuthorization(
-                    ev, ev.getFrom(), authResponse.getReason());
-            }
-            catch(IOException ex)
-            {
-                logger.error("cannot send auth deny", ex);
-            }
-
-            return;
-        }
-
-        // else we accepted it
-        try
-        {
-            yahooSession.acceptFriendAuthorization(ev, ev.getFrom());
-        }
-        catch(IOException ex)
-        {
-            logger.error("cannot send auth deny", ex);
-        }
-
-        if(isCurrentlyCreated)
-        try
-        {
-            addContact(ev.getFrom());
-        }
-        catch (OperationFailedException ex)
-        {
-            logger.error("Cannot add friend", ex);
-        }
-    }
-
-    /**
-     * Imulates firing adding contact in group and moving contact to group.
-     * When moving contact it is first adding to the new group then
-     * it is removed from the old one.
-     */
-    private class ContactListModListenerImpl
-        extends SessionAdapter
-    {
-        private final Hashtable<String, Object> waitMove
-            = new Hashtable<String, Object>();
-
-        public void waitForMove(String id, String oldParent)
-        {
-            waitMove.put(id, oldParent);
-        }
-
-        public void removeWaitForMove(String id)
-        {
-            waitMove.remove(id);
-        }
-
-        /**
-         * Successfully added a friend
-         * friend - YahooUser of friend
-         * group - name of group added to
-         * @param ev fired event
-         */
-        @Override
-        public void friendAddedReceived(SessionFriendEvent ev)
-        {
-            if (logger.isTraceEnabled())
-                logger.trace("Receive event for adding a friend : " + ev);
-
-            ContactGroupYahooImpl group =
-                findContactGroup(ev.getGroup());
-
-            if(group == null){
-                if (logger.isTraceEnabled())
-                    logger.trace("Group not found!" + ev.getGroup());
-                return;
-            }
-
-            String contactID = ev.getFriend().getId();
-            ContactYahooImpl contactToAdd = findContactById(contactID);
-
-            // if group is note resolved resolve it
-            // this means newly created group
-            if(!group.isResolved())
-            {
-                // if the contact is volatile me must remove it
-                // as new one will be created
-                if(contactToAdd != null && contactToAdd.isVolatile())
-                {
-                    ContactGroupYahooImpl parent
-                        = (ContactGroupYahooImpl)contactToAdd
-                            .getParentContactGroup();
-
-                    parent.removeContact(contactToAdd);
-                    fireContactRemoved(parent, contactToAdd);
-                }
-
-                YahooGroup gr = findGroup(ev.getGroup());
-
-                if(gr != null)
-                    group.setResolved(gr);
-
-                // contact will be added when resolving the group
-
-                return;
-            }
-
-
-            boolean isVolatile = false;
-
-            if(contactToAdd == null)
-            {
-                if(addedCustomYahooIds.containsKey(contactID))
-                {
-                    String expectedContactID =
-                         addedCustomYahooIds.remove(contactID);
-
-                    contactToAdd =
-                        new ContactYahooImpl(expectedContactID, ev.getFriend(),
-                            ServerStoredContactListYahooImpl.this, true, true);
-                }
-                else
-                {
-                    contactToAdd =
-                        new ContactYahooImpl(ev.getFriend(),
-                            ServerStoredContactListYahooImpl.this, true, true);
-                }
-            }
-            else
-            {
-                isVolatile = contactToAdd.isVolatile();
-            }
-
-            //first check is contact is moving from a group
-            Object isWaitingForMove = waitMove.get(contactID);
-
-            if(isWaitingForMove != null && isWaitingForMove instanceof String)
-            {
-                // waits for move into group
-                // will remove it from old group and will wait for event remove
-                // from group, then will fire moved to group event
-                String oldParent = (String)isWaitingForMove;
-
-                group.addContact(contactToAdd);
-                waitMove.put(contactID, group.getSourceGroup());
-                try
-                {
-                    yahooSession.removeFriend(contactID, oldParent);
-                }
-                catch(IOException ex)
-                {
-                    if (logger.isInfoEnabled())
-                        logger.info("Cannot Remove(till moving) contact :" +
-                        contactToAdd + " from group " + oldParent);
-                }
-                return;
-            }
-
-            if(isVolatile)
-            {
-                // we must remove the volatile buddy as we will add
-                // the persistent one.
-                // Volatile buddy is moving from the volatile group
-                // to the new one
-                ContactGroupYahooImpl parent =
-                    (ContactGroupYahooImpl)contactToAdd.getParentContactGroup();
-
-                parent.removeContact(contactToAdd);
-                fireContactRemoved(parent, contactToAdd);
-
-                contactToAdd.setPersistent(true);
-                contactToAdd.setResolved(ev.getFriend());
-
-                group.addContact(contactToAdd);
-
-                fireContactAdded(group, contactToAdd);
-                waitMove.remove(contactID);
-
-                return;
-            }
-
-            group.addContact(contactToAdd);
-            fireContactAdded(group, contactToAdd);
-        }
-
-        /**
-         * Successfully removed a friend
-         * friend - YahooUser of friend
-         * group - name of group removed from
-         * @param ev fired event
-         */
-        @Override
-        public void friendRemovedReceived(SessionFriendEvent ev)
-        {
-            if (logger.isTraceEnabled())
-                logger.trace("Receive event for removing a friend : " + ev);
-
-            String contactID = ev.getFriend().getId();
-
-            // first check is this part of move action
-            Object waitForMoveObj = waitMove.get(contactID);
-            if(waitForMoveObj != null && waitForMoveObj instanceof YahooGroup)
-            {
-                // first get the group - oldParent
-                ContactGroupYahooImpl oldParent
-                    = findContactGroup(ev.getGroup());
-                ContactYahooImpl contactToRemove
-                    = oldParent.findContact(contactID);
-
-                oldParent.removeContact(contactToRemove);
-                waitMove.remove(contactID);
-
-                ContactGroupYahooImpl newParent =
-                    findContactGroup(((YahooGroup)waitForMoveObj).getName());
-
-                fireContactMoved(oldParent, newParent, contactToRemove);
-                return;
-            }
-
-            ContactYahooImpl contactToRemove = findContactById(contactID);
-
-            // strange we cannot find the contact to be removed
-            if(contactToRemove == null)
-                return;
-
-            ContactGroupYahooImpl parentGroup =
-                    (ContactGroupYahooImpl)contactToRemove.
-                        getParentContactGroup();
-            parentGroup.removeContact(contactToRemove);
-            fireContactRemoved(parentGroup, contactToRemove);
-
-            // check if the group is deleted. If the contact is the last one in
-            // the group. The group is also deleted
-            if(findGroup(ev.getGroup()) == null)
-            {
-                rootGroup.removeSubGroup(parentGroup);
-                fireGroupEvent(parentGroup,
-                               ServerStoredGroupEvent.GROUP_REMOVED_EVENT);
-            }
-        }
-
-        /**
-         * Someone wants to add us to their friends list
-         * to - the target (us!)
-         * from - the user who wants to add us
-         * message - the request message text
-         * @param ev fired event
-         */
-        @Override
-        public void contactRequestReceived(SessionEvent ev)
-        {
-            if (logger.isInfoEnabled())
-                logger.info("contactRequestReceived : " + ev);
-
-            if(handler == null || ev.getFrom() == null)
-                return;
-
-            ContactYahooImpl contact = findContactById(ev.getFrom());
-
-            if(contact == null)
-                contact = createVolatileContact(ev.getFrom());
-
-            AuthorizationRequest request = new AuthorizationRequest();
-            request.setReason(ev.getMessage());
-
-            AuthorizationResponse resp =
-                handler.processAuthorisationRequest(request, contact);
-
-            if (resp.getResponseCode() == AuthorizationResponse.REJECT)
-            {
-                try{
-                    yahooSession.rejectContact(ev, resp.getReason());
-                }catch(IOException ex){
-                    logger.error("Cannot send reject : " + ex.getMessage());
-                }
-            }
-        }
-
-        /**
-         * Someone has rejected our attempts to add them to our friends list
-         * from - the user who rejected us
-         * message - rejection message text
-         * @param ev fired event
-         */
-        @Override
-        public void contactRejectionReceived(SessionEvent ev)
-        {
-            if (logger.isInfoEnabled())
-                logger.info("contactRejectionReceived : " + ev);
-
-            if(handler == null)
-                return;
-
-            ContactYahooImpl contact = findContactById(ev.getFrom());
-
-            AuthorizationResponse resp =
-                new AuthorizationResponse(AuthorizationResponse.REJECT,
-                                          ev.getMessage());
-            handler.processAuthorizationResponse(resp, contact);
-        }
-
-        /**
-         * Invoked on picture received.
-         * @param ev fired event
-         */
-        @Override
-        public void pictureReceived(SessionPictureEvent ev)
-        {
-            ContactYahooImpl contact = findContactById(ev.getFrom());
-
-            if(contact == null)
-                return;
-
-            contact.setImage(ev.getPictureData());
-
-            parentOperationSet.fireContactPropertyChangeEvent(
-                                ContactPropertyChangeEvent.PROPERTY_IMAGE,
-                                contact, null, ev.getPictureData());
-        }
-
-        /**
-         * Process Authorization responses
-         * @param ev the event to process
-         */
-        @Override
-        public void authorizationReceived(SessionAuthorizationEvent ev)
-        {
-            if(ev.isAuthorizationAccepted())
-            {
-                if (logger.isTraceEnabled())
-                    logger.trace("authorizationAccepted from " + ev.getFrom());
-                Contact srcContact = findContactById(ev.getFrom());
-
-                if(srcContact == null)
-                {
-                    if (logger.isTraceEnabled())
-                        logger.trace("No contact found");
-                }
-                else
-                    handler.processAuthorizationResponse(
-                        new AuthorizationResponse(
-                                AuthorizationResponse.ACCEPT,
-                                ev.getMessage()),
-                        srcContact);
-            }
-            else if(ev.isAuthorizationDenied())
-            {
-                if (logger.isTraceEnabled())
-                    logger.trace("authorizationDenied from " + ev.getFrom());
-                Contact srcContact = findContactById(ev.getFrom());
-
-                if(srcContact == null)
-                {
-                    if (logger.isTraceEnabled())
-                        logger.trace("No contact found");
-                }
-                else
-                {
-                    handler.processAuthorizationResponse(
-                        new AuthorizationResponse(
-                                AuthorizationResponse.REJECT,
-                                ev.getMessage()),
-                        srcContact);
-                    try
-                    {
-                        removeContact((ContactYahooImpl)srcContact);
-                    } catch (Exception ex)
-                    {
-                        logger.error("cannot remove denied contact : " +
-                                srcContact, ex);
-                    }
-                }
-            }
-            else if(ev.isAuthorizationRequest())
-            {
-                if (logger.isTraceEnabled())
-                    logger.trace("authorizationRequestReceived from "
-                             + ev.getFrom());
-                processAuthorizationRequest(ev);
-            }
-        }
-    }
-
-    /**
-     * Sets the yahoo session instance of the lib
-     * which comunicates with the server
-     * @param session YahooSession
-     */
-    void setYahooSession(YahooSession session)
-    {
-        this.yahooSession = session;
-        session.addSessionListener(contactListModListenerImpl);
-        initList();
-    }
-
-    /**
-     * It seems that ymsg (or the Yahoo! service itself as the problem also
-     * appears with libpurple) would return illegal chars for names that were
-     * entered in cyrillic. We use this method to translate their names into
-     * something that we could actually display and store here.
-     *
-     * @param ymsgString the <tt>String</tt> containing illegal chars.
-     *
-     * @return a String where all illegal chars are converted into human
-     * readable ones
-     */
-    static String replaceIllegalChars(String ymsgString)
-    {
-        return ymsgString.replace((char)26, '?');
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/VolatileContactGroupYahooImpl.java b/src/net/java/sip/communicator/impl/protocol/yahoo/VolatileContactGroupYahooImpl.java
deleted file mode 100644
index e2c589a..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/VolatileContactGroupYahooImpl.java
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * The Yahoo implementation of the Volatile ContactGroup interface.
- *
- * @author Damian Minkov
- */
-public class VolatileContactGroupYahooImpl
-    extends ContactGroupYahooImpl
-{
-    /**
-     * This contact group name
-     */
-    private String contactGroupName = null;
-
-    /**
-     * Creates an Yahoo group using the specified group name
-     * @param groupName String groupname
-     * @param ssclCallback a callback to the server stored contact list
-     * we're creating.
-     */
-    VolatileContactGroupYahooImpl(
-                        String groupName,
-                        ServerStoredContactListYahooImpl ssclCallback)
-    {
-        super(groupName, ssclCallback);
-        this.contactGroupName = groupName;
-    }
-
-    /**
-     * Returns the name of this group.
-     * @return a String containing the name of this group.
-     */
-    @Override
-    public String getGroupName()
-    {
-        return contactGroupName;
-    }
-
-    /**
-     * Returns a string representation of this group, in the form
-     * YahooGroup.GroupName[size]{ buddy1.toString(), buddy2.toString(), ...}.
-     * @return  a String representation of the object.
-     */
-    @Override
-    public String toString()
-    {
-        StringBuffer buff = new StringBuffer("VolatileYahooGroup.");
-        buff.append(getGroupName());
-        buff.append(", childContacts="+countContacts()+":[");
-
-        Iterator<Contact> contacts = contacts();
-
-        while (contacts.hasNext())
-        {
-            Contact contact = contacts.next();
-
-            buff.append(contact.toString());
-            if(contacts.hasNext())
-                buff.append(", ");
-        }
-        return buff.append("]").toString();
-    }
-
-    /**
-     * Determines whether or not this contact group is being stored by the
-     * server. Non persistent contact groups exist for the sole purpose of
-     * containing non persistent contacts.
-     * @return true if the contact group is persistent and false otherwise.
-     */
-    @Override
-    public boolean isPersistent()
-    {
-        return false;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooAccountID.java b/src/net/java/sip/communicator/impl/protocol/yahoo/YahooAccountID.java
deleted file mode 100644
index 0eb0e86..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooAccountID.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-/**
- * The Yahoo implementation of a sip-communicator AccountID
- *
- * @author Damian Minkov
- */
-public class YahooAccountID
-    extends AccountID
-{
-    /**
-     * Creates an account id from the specified id and account properties.
-     * @param id the id identifying this account
-     * @param accountProperties any other properties necessary for the account.
-     */
-    YahooAccountID(String id, Map<String, String> accountProperties )
-    {
-        super(YahooSession.getYahooUserID(id),
-              accountProperties, ProtocolNames.YAHOO, "yahoo.com");
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooActivator.java b/src/net/java/sip/communicator/impl/protocol/yahoo/YahooActivator.java
deleted file mode 100644
index 1e7ca01..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooActivator.java
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-
-import org.jitsi.service.configuration.*;
-import org.jitsi.service.resources.*;
-import org.osgi.framework.*;
-
-/**
- * Loads the Yahoo provider factory and registers it with  service in the OSGI
- * bundle context.
- *
- * @author Damian Minkov
- */
-public class YahooActivator
-    implements BundleActivator
-{
-    private        ServiceRegistration  yahooPpFactoryServReg   = null;
-    private static BundleContext        bundleContext         = null;
-    private static ConfigurationService configurationService  = null;
-
-    private static ProtocolProviderFactoryYahooImpl yahooProviderFactory = null;
-
-    private static ResourceManagementService resourcesService;
-
-    /**
-     * Called when this bundle is started so the Framework can perform the
-     * bundle-specific activities necessary to start this bundle.
-     *
-     * @param context The execution context of the bundle being started.
-     * @throws Exception If this method throws an exception, this bundle is
-     *   marked as stopped and the Framework will remove this bundle's
-     *   listeners, unregister all services registered by this bundle, and
-     *   release all services used by this bundle.
-     */
-    public void start(BundleContext context) throws Exception
-    {
-        bundleContext = context;
-
-        Hashtable<String, String> hashtable = new Hashtable<String, String>();
-        hashtable.put(ProtocolProviderFactory.PROTOCOL, ProtocolNames.YAHOO);
-
-        yahooProviderFactory = new ProtocolProviderFactoryYahooImpl();
-
-        //reg the yahoo account man.
-        yahooPpFactoryServReg =  context.registerService(
-                    ProtocolProviderFactory.class.getName(),
-                    yahooProviderFactory,
-                    hashtable);
-    }
-
-    /**
-     * Returns a reference to a ConfigurationService implementation currently
-     * registered in the bundle context or null if no such implementation was
-     * found.
-     *
-     * @return ConfigurationService a currently valid implementation of the
-     * configuration service.
-     */
-    public static ConfigurationService getConfigurationService()
-    {
-        if(configurationService == null)
-        {
-            ServiceReference confReference
-                = bundleContext.getServiceReference(
-                    ConfigurationService.class.getName());
-            configurationService
-                = (ConfigurationService) bundleContext.getService(confReference);
-        }
-        return configurationService;
-    }
-
-    /**
-     * Returns a reference to the bundle context that we were started with.
-     * @return a reference to the BundleContext instance that we were started
-     * witn.
-     */
-    public static BundleContext getBundleContext()
-    {
-        return bundleContext;
-    }
-
-    /**
-     * Retrurns a reference to the protocol provider factory that we have
-     * registered.
-     * @return a reference to the <tt>ProtocolProviderFactoryYahooImpl</tt>
-     * instance that we have registered from this package.
-     */
-    static ProtocolProviderFactoryYahooImpl getProtocolProviderFactory()
-    {
-        return yahooProviderFactory;
-    }
-
-    /**
-     * Called when this bundle is stopped so the Framework can perform the
-     * bundle-specific activities necessary to stop the bundle.
-     *
-     * @param context The execution context of the bundle being stopped.
-     * @throws Exception If this method throws an exception, the bundle is
-     *   still marked as stopped, and the Framework will remove the bundle's
-     *   listeners, unregister all services registered by the bundle, and
-     *   release all services used by the bundle.
-     */
-    public void stop(BundleContext context) throws Exception
-    {
-        yahooProviderFactory.stop();
-        yahooPpFactoryServReg.unregister();
-    }
-
-    public static ResourceManagementService getResources()
-    {
-        if (resourcesService == null)
-        {
-            ServiceReference serviceReference = bundleContext
-                .getServiceReference(ResourceManagementService.class.getName());
-
-            if(serviceReference == null)
-                return null;
-
-            resourcesService = (ResourceManagementService) bundleContext
-                .getService(serviceReference);
-        }
-
-        return resourcesService;
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooSession.java b/src/net/java/sip/communicator/impl/protocol/yahoo/YahooSession.java
deleted file mode 100644
index f24e50c..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/YahooSession.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.impl.protocol.yahoo;
-
-import java.io.*;
-
-import ymsg.network.*;
-
-/**
- * Extends The Yahoo session to have access to some
- * protected functionality
- * Not working for now.
- *
- * @author Damian Minkov
- */
-public class YahooSession
-    extends Session
-{
-    /**
-     * Renames a group. Not working for now
-     */
-    public void renameGroup(String oldName, String newName)
-        throws IOException
-    {
-        transmitGroupRename(oldName, newName);
-    }
-
-    /**
-     * Removes the server part from the given id
-     */
-    public static String getYahooUserID(String id)
-    {
-        return (id.indexOf("@") > -1 )
-                    ? id.substring(0, id.indexOf("@"))
-                    : id;
-    }
-
-    /**
-     * Sending typing notifications
-     * @param to user we are notifing
-     * @param from our user id
-     */
-    void keyTyped(String to, String from)
-    {
-        try {
-            transmitNotify(to, from, true, " ", NOTIFY_TYPING);
-        }catch(IOException e){}
-    }
-
-    /**
-     * Sending stop typing notifications
-     * @param to user we are notifing
-     * @param from our user id
-     */
-    void stopTyping(String to, String from)
-    {
-        try {
-            transmitNotify(to, from, false, " ", NOTIFY_TYPING);
-        }catch(IOException e){}
-    }
-}
diff --git a/src/net/java/sip/communicator/impl/protocol/yahoo/yahoo.provider.manifest.mf b/src/net/java/sip/communicator/impl/protocol/yahoo/yahoo.provider.manifest.mf
deleted file mode 100644
index 39e23bf..0000000
--- a/src/net/java/sip/communicator/impl/protocol/yahoo/yahoo.provider.manifest.mf
+++ /dev/null
@@ -1,22 +0,0 @@
-Bundle-Activator: net.java.sip.communicator.impl.protocol.yahoo.YahooActivator
-Bundle-Name: Yahoo Protocol Provider Implementation
-Bundle-Description: An Yahoo implementation of the Protocol Provider Service.
-Bundle-Vendor: jitsi.org
-Bundle-Version: 0.0.1
-Bundle-SymbolicName: net.java.sip.communicator.protocol.yahoo
-Import-Package: org.osgi.framework,
- javax.net.ssl,
- javax.swing,
- javax.swing.text,
- javax.xml.parsers,
- javax.naming,
- javax.naming.directory,
- org.xml.sax,
- sun.security.action,
- org.jitsi.service.configuration,
- org.jitsi.service.resources, net.java.sip.communicator.service.resources,
- net.java.sip.communicator.util,
- net.java.sip.communicator.service.dns,
- net.java.sip.communicator.service.protocol,
- net.java.sip.communicator.service.protocol.yahooconstants,
- net.java.sip.communicator.service.protocol.event
diff --git a/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java b/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
index 0658d59..81a4aad 100644
--- a/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
+++ b/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
@@ -419,7 +419,7 @@ public class MacOSXAddrBookContactQuery
             c = Category.InstantMessaging;
             break;
         case kABMSNInstantProperty:
-            sc = SubCategory.MSN;
+            sc = SubCategory.Skype;
             c = Category.InstantMessaging;
             break;
         case kABYahooInstantProperty:
@@ -1240,12 +1240,6 @@ public class MacOSXAddrBookContactQuery
         case kABPhoneProperty:
             supportedOpSets.add(OperationSetBasicTelephony.class);
             break;
-        case kABYahooInstantProperty:
-            supportedOpSets.add(OperationSetBasicInstantMessaging.class);
-            preferredProtocols.put(
-                    OperationSetBasicInstantMessaging.class,
-                    ProtocolNames.YAHOO);
-            break;
         default:
             break;
         }
@@ -1339,7 +1333,7 @@ public class MacOSXAddrBookContactQuery
                     return kABAIMInstantProperty;
                 else if(subCategories.contains(SubCategory.ICQ))
                     return kABICQInstantProperty;
-                else if(subCategories.contains(SubCategory.MSN))
+                else if(subCategories.contains(SubCategory.Skype))
                     return kABMSNInstantProperty;
                 else if(subCategories.contains(SubCategory.Jabber))
                     return kABJabberInstantProperty;
diff --git a/src/net/java/sip/communicator/plugin/aimaccregwizz/aimaccregwizz.manifest.mf b/src/net/java/sip/communicator/plugin/aimaccregwizz/aimaccregwizz.manifest.mf
index 274310a..b5d678f 100644
--- a/src/net/java/sip/communicator/plugin/aimaccregwizz/aimaccregwizz.manifest.mf
+++ b/src/net/java/sip/communicator/plugin/aimaccregwizz/aimaccregwizz.manifest.mf
@@ -12,7 +12,6 @@ Import-Package: org.osgi.framework,
  net.java.sip.communicator.service.gui,
  net.java.sip.communicator.service.gui.event,
  net.java.sip.communicator.service.protocol,
- net.java.sip.communicator.service.protocol.aimconstants,
  net.java.sip.communicator.service.protocol.event,
  net.java.sip.communicator.service.protocol.icqconstants,
  org.jitsi.service.resources, net.java.sip.communicator.service.resources,
diff --git a/src/net/java/sip/communicator/plugin/globalproxyconfig/GlobalProxyPluginActivator.java b/src/net/java/sip/communicator/plugin/globalproxyconfig/GlobalProxyPluginActivator.java
index a80633e..7e9dbd5 100644
--- a/src/net/java/sip/communicator/plugin/globalproxyconfig/GlobalProxyPluginActivator.java
+++ b/src/net/java/sip/communicator/plugin/globalproxyconfig/GlobalProxyPluginActivator.java
@@ -175,9 +175,8 @@ public class GlobalProxyPluginActivator implements BundleActivator
                             "http.proxyPort", globalProxyPortStr);
                     }
 
-                    // used by some protocols like yahoo
-                    System.setProperty(
-                        "proxySet", "true");
+                    // used by some protocols
+                    System.setProperty("proxySet", "true");
                 }
                 else if(globalProxyType.equals(
                     ProxyInfo.ProxyType.SOCKS4.name()) ||
@@ -196,9 +195,8 @@ public class GlobalProxyPluginActivator implements BundleActivator
                             "socksProxyPort", globalProxyPortStr);
                     }
 
-                    // used by some protocols like yahoo
-                    System.setProperty(
-                        "socksProxySet", "true");
+                    // used by some protocols
+                    System.setProperty("socksProxySet", "true");
                 }
 
                 Authenticator.setDefault(new AuthenticatorImpl(
diff --git a/src/net/java/sip/communicator/plugin/msofficecomm/Messenger.java b/src/net/java/sip/communicator/plugin/msofficecomm/Messenger.java
index 28754e4..51b3a67 100644
--- a/src/net/java/sip/communicator/plugin/msofficecomm/Messenger.java
+++ b/src/net/java/sip/communicator/plugin/msofficecomm/Messenger.java
@@ -28,7 +28,6 @@ import net.java.sip.communicator.service.protocol.*;
 import net.java.sip.communicator.service.protocol.ServerStoredDetails.*;
 import net.java.sip.communicator.service.protocol.event.*;
 import net.java.sip.communicator.service.protocol.jabberconstants.*;
-import net.java.sip.communicator.service.protocol.yahooconstants.*;
 import net.java.sip.communicator.util.*;
 
 import org.jitsi.service.configuration.*;
@@ -1123,11 +1122,6 @@ public class Messenger
                 {
                     mistatus = MISTATUS_ON_THE_PHONE;
                 }
-                else if (ProtocolNames.YAHOO.equalsIgnoreCase(protocolName)
-                        && YahooStatusEnum.ON_THE_PHONE.equals(presenceStatus))
-                {
-                    mistatus = MISTATUS_ON_THE_PHONE;
-                }
                 else if ((i == 32 /* FIXME */)
                     && ProtocolNames.JABBER.equalsIgnoreCase(protocolName)
                     && JabberStatusEnum.IN_A_MEETING.equalsIgnoreCase(
diff --git a/src/net/java/sip/communicator/plugin/msofficecomm/msofficecomm.manifest.mf b/src/net/java/sip/communicator/plugin/msofficecomm/msofficecomm.manifest.mf
index 54d8545..2a3a712 100644
--- a/src/net/java/sip/communicator/plugin/msofficecomm/msofficecomm.manifest.mf
+++ b/src/net/java/sip/communicator/plugin/msofficecomm/msofficecomm.manifest.mf
@@ -10,7 +10,6 @@ Import-Package: javax.swing,
  net.java.sip.communicator.service.protocol,
  net.java.sip.communicator.service.protocol.event,
  net.java.sip.communicator.service.protocol.jabberconstants,
- net.java.sip.communicator.service.protocol.yahooconstants,
  net.java.sip.communicator.util,
  org.jitsi.service.configuration,
  org.jitsi.util,
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/FirstWizardPage.java b/src/net/java/sip/communicator/plugin/yahooaccregwizz/FirstWizardPage.java
deleted file mode 100644
index 27e32c6..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/FirstWizardPage.java
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.plugin.yahooaccregwizz;
-
-import java.awt.*;
-
-import javax.swing.*;
-import javax.swing.event.*;
-
-import net.java.sip.communicator.service.gui.*;
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.plugin.desktoputil.*;
-
-/**
- * The <tt>FirstWizardPage</tt> is the page, where user could enter the uin
- * and the password of the account.
- *
- * @author Yana Stamcheva
- * @author Damian Minkov
- */
-public class FirstWizardPage
-    extends TransparentPanel
-    implements  WizardPage,
-                DocumentListener
-{
-    /**
-     * Serial version UID.
-     */
-    private static final long serialVersionUID = 0L;
-
-    public static final String FIRST_PAGE_IDENTIFIER = "FirstPageIdentifier";
-
-    public static final String USER_NAME_EXAMPLE
-        = "Ex: johnsmith@yahoo.com or johnsmith";
-
-    private JPanel uinPassPanel = new TransparentPanel(new BorderLayout(10, 10));
-
-    private JPanel labelsPanel = new TransparentPanel();
-
-    private JPanel valuesPanel = new TransparentPanel();
-
-    private JLabel uinLabel = new JLabel(
-        Resources.getString("plugin.yahooaccregwizz.USERNAME"));
-
-    private JLabel passLabel
-        = new JLabel(Resources.getString("service.gui.PASSWORD"));
-
-    private JPanel emptyPanel = new TransparentPanel();
-
-    private JLabel uinExampleLabel = new JLabel(USER_NAME_EXAMPLE);
-
-    private JTextField userIDField = new TrimTextField();
-
-    private JPasswordField passField = new JPasswordField();
-
-    private JCheckBox rememberPassBox =
-        new SIPCommCheckBox(
-            Resources.getString("service.gui.REMEMBER_PASSWORD"));
-
-    private JPanel mainPanel = new TransparentPanel();
-
-    private Object nextPageIdentifier = WizardPage.SUMMARY_PAGE_IDENTIFIER;
-
-    private YahooAccountRegistrationWizard wizard;
-
-    private boolean isCommitted = false;
-
-    /**
-     * Creates an instance of <tt>FirstWizardPage</tt>.
-     *
-     * @param wizard the parent wizard
-     */
-    public FirstWizardPage(YahooAccountRegistrationWizard wizard)
-    {
-
-        super(new BorderLayout());
-
-        this.wizard = wizard;
-
-        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
-
-        this.init();
-
-        this.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
-
-        this.labelsPanel
-            .setLayout(new BoxLayout(labelsPanel, BoxLayout.Y_AXIS));
-
-        this.valuesPanel
-            .setLayout(new BoxLayout(valuesPanel, BoxLayout.Y_AXIS));
-    }
-
-    /**
-     * Initializes all panels, buttons, etc.
-     */
-    private void init()
-    {
-        this.mainPanel.setOpaque(false);
-        this.labelsPanel.setOpaque(false);
-        this.valuesPanel.setOpaque(false);
-        this.uinPassPanel.setOpaque(false);
-        this.emptyPanel.setOpaque(false);
-
-        this.userIDField.getDocument().addDocumentListener(this);
-        this.rememberPassBox.setSelected(true);
-
-        this.uinExampleLabel.setForeground(Color.GRAY);
-        this.uinExampleLabel.setFont(uinExampleLabel.getFont().deriveFont(8));
-        this.emptyPanel.setMaximumSize(new Dimension(40, 35));
-        this.uinExampleLabel.setBorder(
-            BorderFactory.createEmptyBorder(0, 0, 8, 0));
-
-        labelsPanel.add(uinLabel);
-        labelsPanel.add(emptyPanel);
-        labelsPanel.add(passLabel);
-
-        valuesPanel.add(userIDField);
-        valuesPanel.add(uinExampleLabel);
-        valuesPanel.add(passField);
-
-        uinPassPanel.add(labelsPanel, BorderLayout.WEST);
-        uinPassPanel.add(valuesPanel, BorderLayout.CENTER);
-        uinPassPanel.add(rememberPassBox, BorderLayout.SOUTH);
-
-        uinPassPanel.setBorder(BorderFactory.createTitledBorder(Resources
-            .getString("plugin.yahooaccregwizz.USERID_AND_PASSWORD")));
-
-        mainPanel.add(uinPassPanel);
-        this.add(mainPanel, BorderLayout.NORTH);
-    }
-
-    /**
-     * Implements the <code>WizardPage.getIdentifier</code> to return this
-     * page identifier.
-     */
-    public Object getIdentifier()
-    {
-        return FIRST_PAGE_IDENTIFIER;
-    }
-
-    /**
-     * Implements the <code>WizardPage.getNextPageIdentifier</code> to return
-     * the next page identifier - the summary page.
-     */
-    public Object getNextPageIdentifier()
-    {
-        return nextPageIdentifier;
-    }
-
-    /**
-     * Implements the <code>WizardPage.getBackPageIdentifier</code> to return
-     * the back identifier. In this case it's null because this is the first
-     * wizard page.
-     * @return the identifier of the previous wizard page
-     */
-    public Object getBackPageIdentifier()
-    {
-        return null;
-    }
-
-    /**
-     * Implements the <code>WizardPage.getWizardForm</code> to return this
-     * panel.
-     */
-    public Object getWizardForm()
-    {
-        return this;
-    }
-
-    /**
-     * Before this page is displayed enables or disables the "Next" wizard
-     * button according to whether the UIN field is empty.
-     */
-    public void pageShowing()
-    {
-        this.setNextButtonAccordingToUIN();
-    }
-
-    /**
-     * Saves the user input when the "Next" wizard buttons is clicked.
-     */
-    public void commitPage()
-    {
-        YahooAccountRegistration registration = wizard.getRegistration();
-
-        String userID = userIDField.getText();
-
-        if(userID == null || userID.trim().length() == 0)
-            throw new IllegalStateException("No user ID provided.");
-
-        registration.setUserID(userID);
-        registration.setPassword(new String(passField.getPassword()));
-        registration.setRememberPassword(rememberPassBox.isSelected());
-
-        nextPageIdentifier = SUMMARY_PAGE_IDENTIFIER;
-
-        isCommitted = true;
-    }
-
-    /**
-     * Enables or disables the "Next" wizard button according to whether the UIN
-     * field is empty.
-     */
-    private void setNextButtonAccordingToUIN()
-    {
-        if (userIDField.getText() == null || userIDField.getText().equals(""))
-        {
-            wizard.getWizardContainer().setNextFinishButtonEnabled(false);
-        }
-        else
-        {
-            wizard.getWizardContainer().setNextFinishButtonEnabled(true);
-        }
-    }
-
-    /**
-     * Handles the <tt>DocumentEvent</tt> triggered when user types in the UIN
-     * field. Enables or disables the "Next" wizard button according to whether
-     * the UIN field is empty.
-     */
-    public void insertUpdate(DocumentEvent e)
-    {
-        this.setNextButtonAccordingToUIN();
-    }
-
-    /**
-     * Handles the <tt>DocumentEvent</tt> triggered when user deletes letters
-     * from the UIN field. Enables or disables the "Next" wizard button
-     * according to whether the UIN field is empty.
-     */
-    public void removeUpdate(DocumentEvent e)
-    {
-        this.setNextButtonAccordingToUIN();
-    }
-
-    public void changedUpdate(DocumentEvent e)
-    {
-    }
-
-    public void pageHiding()
-    {
-    }
-
-    public void pageShown()
-    {
-    }
-
-    public void pageBack()
-    {
-    }
-
-    /**
-     * Fills the UIN and Password fields in this panel with the data coming
-     * from the given protocolProvider.
-     *
-     * @param protocolProvider The <tt>ProtocolProviderService</tt> to load
-     *            the data from.
-     */
-    public void loadAccount(ProtocolProviderService protocolProvider)
-    {
-        AccountID accountID = protocolProvider.getAccountID();
-        String password = YahooAccRegWizzActivator
-            .getYahooProtocolProviderFactory().loadPassword(accountID);
-
-        this.userIDField.setEnabled(false);
-        this.userIDField.setText(accountID.getUserID());
-
-        if (password != null)
-        {
-            this.passField.setText(password);
-            this.rememberPassBox.setSelected(true);
-        }
-    }
-
-    public Object getSimpleForm()
-    {
-        return uinPassPanel;
-    }
-
-    public boolean isCommitted()
-    {
-        return isCommitted;
-    }
-}
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/Resources.java b/src/net/java/sip/communicator/plugin/yahooaccregwizz/Resources.java
deleted file mode 100644
index c41a72f..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/Resources.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.plugin.yahooaccregwizz;
-
-import net.java.sip.communicator.service.resources.*;
-
-import org.jitsi.service.resources.*;
-
-/**
- * The <tt>Resources</tt> class manages the access to the internationalization
- * properties files and the image resources used in this plugin.
- *
- * @author Yana Stamcheva
- */
-public class Resources
-{
-    private static ResourceManagementService resourcesService;
-
-    public static ImageID YAHOO_LOGO
-        = new ImageID("service.protocol.yahoo.YAHOO_16x16");
-
-    public static ImageID PAGE_IMAGE
-        = new ImageID("service.protocol.yahoo.YAHOO_64x64");
-
-    /**
-     * Returns an internationalized string corresponding to the given key.
-     * @param key The key of the string.
-     * @return An internationalized string corresponding to the given key.
-     */
-    public static String getString(String key)
-    {
-        return getResources().getI18NString(key);
-    }
-
-    /**
-     * Loads an image from a given image identifier.
-     * @param imageID The identifier of the image.
-     * @return The image for the given identifier.
-     */
-    public static byte[] getImage(ImageID imageID)
-    {
-        return getResources().getImageInBytes(imageID.getId());
-    }
-
-    /**
-     * Returns the <tt>ResourceManagementService</tt>.
-     *
-     * @return the <tt>ResourceManagementService</tt>.
-     */
-    public static ResourceManagementService getResources()
-    {
-        if (resourcesService == null)
-            resourcesService =
-                ResourceManagementServiceUtils
-                    .getService(YahooAccRegWizzActivator.bundleContext);
-        return resourcesService;
-    }
-}
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccRegWizzActivator.java b/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccRegWizzActivator.java
deleted file mode 100644
index cd526a9..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccRegWizzActivator.java
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.plugin.yahooaccregwizz;
-
-import java.util.*;
-
-import net.java.sip.communicator.service.browserlauncher.*;
-import net.java.sip.communicator.service.gui.*;
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.util.*;
-
-import org.osgi.framework.*;
-
-/**
- * Registers the <tt>YahooAccountRegistrationWizard</tt> in the UI Service.
- *
- * @author Yana Stamcheva
- */
-public class YahooAccRegWizzActivator
-    extends AbstractServiceDependentActivator
-{
-    /**
-     * OSGi bundle context.
-     */
-    public static BundleContext bundleContext;
-
-    private static final Logger logger =
-        Logger.getLogger(YahooAccRegWizzActivator.class);
-
-    private static BrowserLauncherService browserLauncherService;
-
-    private static WizardContainer wizardContainer;
-
-    private static YahooAccountRegistrationWizard yahooWizard;
-
-    private static UIService uiService;
-
-    /**
-     * Starts this bundle.
-     */
-    @Override
-    public void start(Object dependentService)
-    {
-        uiService = (UIService)dependentService;
-
-        wizardContainer = uiService.getAccountRegWizardContainer();
-
-        yahooWizard = new YahooAccountRegistrationWizard(wizardContainer);
-
-        Hashtable<String, String> containerFilter
-            = new Hashtable<String, String>();
-
-        containerFilter.put(
-                ProtocolProviderFactory.PROTOCOL,
-                ProtocolNames.YAHOO);
-
-        bundleContext.registerService(
-            AccountRegistrationWizard.class.getName(),
-            yahooWizard,
-            containerFilter);
-    }
-
-    /**
-     * The dependent class. We are waiting for the ui service.
-     * @return the ui service class.
-     */
-    @Override
-    public Class<?> getDependentServiceClass()
-    {
-        return UIService.class;
-    }
-
-    /**
-     * The bundle context to use.
-     * @param context the context to set.
-     */
-    @Override
-    public void setBundleContext(BundleContext context)
-    {
-        bundleContext = context;
-    }
-
-    public void stop(BundleContext bundleContext) throws Exception
-    {
-    }
-
-    /**
-     * Returns the <tt>ProtocolProviderFactory</tt> for the Yahoo protocol.
-     * @return the <tt>ProtocolProviderFactory</tt> for the Yahoo protocol
-     */
-    public static ProtocolProviderFactory getYahooProtocolProviderFactory()
-    {
-        ServiceReference[] serRefs = null;
-        String osgiFilter
-            = "("
-                + ProtocolProviderFactory.PROTOCOL
-                + "="
-                + ProtocolNames.YAHOO
-                + ")";
-
-        try {
-            serRefs
-                = bundleContext.getServiceReferences(
-                        ProtocolProviderFactory.class.getName(),
-                        osgiFilter);
-        }
-        catch (InvalidSyntaxException ex){
-            logger.error("YahooAccRegWizzActivator : " + ex);
-        }
-
-        return
-            (serRefs == null)
-                ? null
-                : (ProtocolProviderFactory)
-                    bundleContext.getService(serRefs[0]);
-    }
-
-    /**
-     * Returns the <tt>UIService</tt>.
-     *
-     * @return the <tt>UIService</tt>
-     */
-    public static UIService getUIService()
-    {
-        return uiService;
-    }
-
-    /**
-     * Returns the <tt>BrowserLauncherService</tt> obtained from the bundle
-     * context.
-     * @return the <tt>BrowserLauncherService</tt> obtained from the bundle
-     * context
-     */
-    public static BrowserLauncherService getBrowserLauncher() {
-        if (browserLauncherService == null) {
-            ServiceReference serviceReference = bundleContext
-                .getServiceReference(BrowserLauncherService.class.getName());
-
-            browserLauncherService = (BrowserLauncherService) bundleContext
-                .getService(serviceReference);
-        }
-
-        return browserLauncherService;
-    }
-}
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistration.java b/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistration.java
deleted file mode 100644
index 6cf7759..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistration.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.plugin.yahooaccregwizz;
-
-/**
- * The <tt>YahooAccountRegistration</tt> is used to store all user input data
- * through the <tt>YahooAccountRegistrationWizard</tt>.
- *
- * @author Yana Stamcheva
- */
-public class YahooAccountRegistration {
-
-    private String uin;
-
-    private String password;
-
-    private boolean rememberPassword = true;
-
-    /**
-     * Returns the password of the yahoo registration account.
-     * @return the password of the yahoo registration account.
-     */
-    public String getPassword() {
-        return password;
-    }
-
-    /**
-     * Sets the password of the yahoo registration account.
-     * @param password the password of the yahoo registration account.
-     */
-    public void setPassword(String password) {
-        this.password = password;
-    }
-
-    /**
-     * Returns TRUE if password has to remembered, FALSE otherwise.
-     * @return TRUE if password has to remembered, FALSE otherwise
-     */
-    public boolean isRememberPassword() {
-        return rememberPassword;
-    }
-
-    /**
-     * Sets the rememberPassword value of this yahoo account registration.
-     * @param rememberPassword TRUE if password has to remembered, FALSE
-     * otherwise
-     */
-    public void setRememberPassword(boolean rememberPassword) {
-        this.rememberPassword = rememberPassword;
-    }
-
-    /**
-     * Returns the UIN of the yahoo registration account.
-     * @return the UIN of the yahoo registration account.
-     */
-    public String getUin() {
-        return uin;
-    }
-
-    /**
-     * Sets the UIN of the yahoo registration account.
-     * @param uin the UIN of the yahoo registration account.
-     */
-    public void setUserID(String uin) {
-        this.uin = uin;
-    }
-
-}
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistrationWizard.java b/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistrationWizard.java
deleted file mode 100644
index 033f409..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/YahooAccountRegistrationWizard.java
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.plugin.yahooaccregwizz;
-
-import java.awt.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.gui.*;
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.util.*;
-
-import org.osgi.framework.*;
-
-/**
- * The <tt>YahooAccountRegistrationWizard</tt> is an implementation of the
- * <tt>AccountRegistrationWizard</tt> for the Yahoo protocol. It should allow
- * the user to create and configure a new Yahoo account.
- *
- * @author Yana Stamcheva
- */
-public class YahooAccountRegistrationWizard
-    extends DesktopAccountRegistrationWizard
-{
-    private final Logger logger
-        = Logger.getLogger(YahooAccountRegistrationWizard.class);
-
-    private FirstWizardPage firstWizardPage;
-
-    private YahooAccountRegistration registration =
-        new YahooAccountRegistration();
-
-    private ProtocolProviderService protocolProvider;
-
-    /**
-     * Creates an instance of <tt>YahooAccountRegistrationWizard</tt>.
-     *
-     * @param wizardContainer the wizard container, where this wizard is added
-     */
-    public YahooAccountRegistrationWizard(WizardContainer wizardContainer)
-    {
-        setWizardContainer(wizardContainer);
-
-        wizardContainer
-            .setFinishButtonText(Resources.getString("service.gui.SIGN_IN"));
-    }
-
-    /**
-     * Implements the <code>AccountRegistrationWizard.getIcon</code> method.
-     * Returns the icon to be used for this wizard.
-     *
-     * @return byte[]
-     */
-    @Override
-    public byte[] getIcon()
-    {
-        return Resources.getImage(Resources.YAHOO_LOGO);
-    }
-
-    /**
-     * Implements the <code>AccountRegistrationWizard.getPageImage</code>
-     * method. Returns the image used to decorate the wizard page
-     *
-     * @return byte[] the image used to decorate the wizard page
-     */
-    @Override
-    public byte[] getPageImage()
-    {
-        return Resources.getImage(Resources.PAGE_IMAGE);
-    }
-
-    /**
-     * Implements the <code>AccountRegistrationWizard.getProtocolName</code>
-     * method. Returns the protocol name for this wizard.
-     *
-     * @return String
-     */
-    @Override
-    public String getProtocolName()
-    {
-        return Resources.getString("plugin.yahooaccregwizz.PROTOCOL_NAME");
-    }
-
-    /**
-     * Implements the <code>AccountRegistrationWizard.getProtocolDescription
-     * </code>
-     * method. Returns the description of the protocol for this wizard.
-     *
-     * @return String
-     */
-    @Override
-    public String getProtocolDescription()
-    {
-        return Resources
-            .getString("plugin.yahooaccregwizz.PROTOCOL_DESCRIPTION");
-    }
-
-    /**
-     * Returns the set of pages contained in this wizard.
-     *
-     * @return Iterator
-     */
-    @Override
-    public Iterator<WizardPage> getPages()
-    {
-        java.util.List<WizardPage> pages = new ArrayList<WizardPage>();
-        firstWizardPage = new FirstWizardPage(this);
-
-        pages.add(firstWizardPage);
-
-        return pages.iterator();
-    }
-
-    /**
-     * Returns the set of data that user has entered through this wizard.
-     *
-     * @return Iterator
-     */
-    @Override
-    public Iterator<Map.Entry<String, String>> getSummary()
-    {
-        Hashtable<String, String> summaryTable
-            = new Hashtable<String, String>();
-
-        summaryTable.put(
-            Resources.getString("plugin.yahooaccregwizz.USERNAME"),
-            registration.getUin());
-        summaryTable.put(
-            Resources.getString("service.gui.REMEMBER_PASSWORD"),
-            Boolean.toString(registration.isRememberPassword()));
-
-        return summaryTable.entrySet().iterator();
-    }
-
-    /**
-     * Defines the operations that will be executed when the user clicks on
-     * the wizard "Signin" button.
-     *
-     * @return the created <tt>ProtocolProviderService</tt> corresponding to the
-     * new account
-     * @throws OperationFailedException if the operation didn't succeed
-     */
-    @Override
-    public ProtocolProviderService signin()
-        throws OperationFailedException
-    {
-        firstWizardPage.commitPage();
-
-        return signin(  registration.getUin(),
-                        registration.getPassword());
-    }
-
-    /**
-     * Defines the operations that will be executed when the user clicks on
-     * the wizard "Signin" button.
-     *
-     * @param userName the user name to sign in with
-     * @param password the password to sign in with
-     * @return the created <tt>ProtocolProviderService</tt> corresponding to the
-     * new account
-     * @throws OperationFailedException if the operation didn't succeed
-     */
-    @Override
-    public ProtocolProviderService signin(String userName, String password)
-        throws OperationFailedException
-    {
-        ProtocolProviderFactory factory =
-            YahooAccRegWizzActivator.getYahooProtocolProviderFactory();
-
-        return this.installAccount( factory,
-                                    userName,
-                                    password);
-    }
-
-    /**
-     * Creates an account for the given user and password.
-     *
-     * @param providerFactory the ProtocolProviderFactory which will create the
-     *            account
-     * @param user the user identifier
-     * @param passwd the password
-     * @return the <tt>ProtocolProviderService</tt> for the new account.
-     */
-    public ProtocolProviderService installAccount(
-        ProtocolProviderFactory providerFactory, String user, String passwd)
-        throws OperationFailedException
-    {
-        Hashtable<String, String> accountProperties
-            = new Hashtable<String, String>();
-
-        accountProperties.put(ProtocolProviderFactory.ACCOUNT_ICON_PATH,
-            "resources/images/protocol/yahoo/yahoo32x32.png");
-
-        if (registration.isRememberPassword())
-        {
-            accountProperties.put(ProtocolProviderFactory.PASSWORD, passwd);
-        }
-
-        if (isModification())
-        {
-            providerFactory.modifyAccount(  protocolProvider,
-                accountProperties);
-
-            setModification(false);
-
-            return protocolProvider;
-        }
-
-        try
-        {
-            AccountID accountID =
-                providerFactory.installAccount(user, accountProperties);
-
-            ServiceReference serRef =
-                providerFactory.getProviderForAccount(accountID);
-
-            protocolProvider =
-                (ProtocolProviderService) YahooAccRegWizzActivator
-                    .bundleContext.getService(serRef);
-        }
-        catch (IllegalStateException exc)
-        {
-            logger.warn(exc.getMessage());
-
-            throw new OperationFailedException(
-                "Account already exists.",
-                OperationFailedException.IDENTIFICATION_CONFLICT);
-        }
-        catch (Exception exc)
-        {
-            logger.warn(exc.getMessage());
-
-            throw new OperationFailedException(
-                "Failed to add account",
-                OperationFailedException.GENERAL_ERROR);
-        }
-
-        return protocolProvider;
-    }
-
-    /**
-     * Fills the UIN and Password fields in this panel with the data coming
-     * from the given protocolProvider.
-     *
-     * @param protocolProvider The <tt>ProtocolProviderService</tt> to load
-     *            the data from.
-     */
-    @Override
-    public void loadAccount(ProtocolProviderService protocolProvider)
-    {
-        setModification(true);
-
-        this.protocolProvider = protocolProvider;
-
-        this.registration = new YahooAccountRegistration();
-
-        this.firstWizardPage.loadAccount(protocolProvider);
-    }
-
-    /**
-     * Returns the registration object, which will store all the data through
-     * the wizard.
-     *
-     * @return the registration object, which will store all the data through
-     * the wizard
-     */
-    public YahooAccountRegistration getRegistration()
-    {
-        return registration;
-    }
-
-    /**
-     * Returns the size of this wizard.
-     * @return the size of this wizard
-     */
-    @Override
-    public Dimension getSize()
-    {
-        return new Dimension(600, 500);
-    }
-
-    /**
-     * Returns the identifier of the page to show first in the wizard.
-     * @return the identifier of the page to show first in the wizard.
-     */
-    @Override
-    public Object getFirstPageIdentifier()
-    {
-        return firstWizardPage.getIdentifier();
-    }
-
-    /**
-     * Returns the identifier of the page to show last in the wizard.
-     * @return the identifier of the page to show last in the wizard.
-     */
-    @Override
-    public Object getLastPageIdentifier()
-    {
-        return firstWizardPage.getIdentifier();
-    }
-
-    /**
-     * Returns an example string, which should indicate to the user how the
-     * user name should look like.
-     * @return an example string, which should indicate to the user how the
-     * user name should look like.
-     */
-    @Override
-    public String getUserNameExample()
-    {
-        return FirstWizardPage.USER_NAME_EXAMPLE;
-    }
-
-    /**
-     * Defines the operation that will be executed when user clicks on the
-     * "Sign up" link.
-     * @throws UnsupportedOperationException if the web sign up operation is
-     * not supported by the current implementation.
-     */
-    @Override
-    public void webSignup()
-    {
-        YahooAccRegWizzActivator.getBrowserLauncher()
-            .openURL("https://edit.yahoo.com/registration");
-    }
-
-    /**
-     * Returns <code>true</code> if the web sign up is supported by the current
-     * implementation, <code>false</code> - otherwise.
-     * @return <code>true</code> if the web sign up is supported by the current
-     * implementation, <code>false</code> - otherwise
-     */
-    @Override
-    public boolean isWebSignupSupported()
-    {
-        return true;
-    }
-
-    /**
-     * Returns a simple account registration form that would be the first form
-     * shown to the user. Only if the user needs more settings she'll choose
-     * to open the advanced wizard, consisted by all pages.
-     *
-     * @param isCreateAccount indicates if the simple form should be opened as
-     * a create account form or as a login form
-     * @return a simple account registration form
-     */
-    @Override
-    public Object getSimpleForm(boolean isCreateAccount)
-    {
-        firstWizardPage = new FirstWizardPage(this);
-
-        return firstWizardPage.getSimpleForm();
-    }
-
-    /**
-     * Whether the advanced configuration is enabled. Gives an option
-     * to disable/hide advanced config button.
-     * @return whether the advanced configuration is enabled.
-     */
-    public boolean isAdvancedConfigurationEnabled()
-    {
-        return false;
-    }
-}
diff --git a/src/net/java/sip/communicator/plugin/yahooaccregwizz/yahooaccregwizz.manifest.mf b/src/net/java/sip/communicator/plugin/yahooaccregwizz/yahooaccregwizz.manifest.mf
deleted file mode 100644
index a975e2e..0000000
--- a/src/net/java/sip/communicator/plugin/yahooaccregwizz/yahooaccregwizz.manifest.mf
+++ /dev/null
@@ -1,33 +0,0 @@
-Bundle-Activator: net.java.sip.communicator.plugin.yahooaccregwizz.YahooAccRegWizzActivator
-Bundle-Name: Yahoo account registration wizard
-Bundle-Description: Yahoo account registration wizard.
-Bundle-Vendor: jitsi.org
-Bundle-Version: 0.0.1
-Bundle-SymbolicName: net.java.sip.communicator.plugin.yahooaccregwizz
-Import-Package: org.osgi.framework,
- net.java.sip.communicator.service.browserlauncher,
- org.jitsi.service.configuration,
- net.java.sip.communicator.service.contactlist,
- net.java.sip.communicator.service.contactlist.event,
- net.java.sip.communicator.service.gui,
- net.java.sip.communicator.service.gui.event,
- net.java.sip.communicator.service.protocol,
- net.java.sip.communicator.service.protocol.event,
- net.java.sip.communicator.service.protocol.icqconstants,
- org.jitsi.service.resources, net.java.sip.communicator.service.resources,
- net.java.sip.communicator.util,
- net.java.sip.communicator.plugin.desktoputil,
- javax.swing,
- javax.swing.event,
- javax.swing.table,
- javax.swing.text,
- javax.swing.text.html,
- javax.accessibility,
- javax.swing.plaf,
- javax.swing.plaf.metal,
- javax.swing.plaf.basic,
- javax.imageio,
- javax.swing.filechooser,
- javax.swing.tree,
- javax.swing.undo,
- javax.swing.border
diff --git a/src/net/java/sip/communicator/service/contactsource/ContactDetail.java b/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
index 332c18d..362faf4 100644
--- a/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
+++ b/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
@@ -210,11 +210,9 @@ public class ContactDetail
          */
         AIM("AIM"),
         ICQ("ICQ"),
-        MSN("MSN"),
-        Jabber("Jabber"),
+        Jabber("XMPP"),
         Skype("Skype"),
         Yahoo("Yahoo"),
-        Facebook("Facebook"),
         GoogleTalk("GoogleTalk"),
 
         /**
diff --git a/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsEntry.java b/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsEntry.java
index 0e89162..e72fe67 100644
--- a/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsEntry.java
+++ b/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsEntry.java
@@ -37,21 +37,11 @@ public interface GoogleContactsEntry
         GOOGLETALK,
 
         /**
-         * Yahoo protocol.
-         */
-        YAHOO,
-
-        /**
          * AIM protocol.
          */
         AIM,
 
         /**
-         * MSN protocol.
-         */
-        MSN,
-
-        /**
          * ICQ protocol.
          */
         ICQ,
@@ -62,6 +52,11 @@ public interface GoogleContactsEntry
         JABBER,
 
         /**
+         * Skype protocol.
+         */
+        SKYPE,
+
+        /**
          * Other protocol (i.e. not supported).
          */
         OTHER,
diff --git a/src/net/java/sip/communicator/service/protocol/AdHocChatRoom.java b/src/net/java/sip/communicator/service/protocol/AdHocChatRoom.java
index 6f07bd1..e2af0a8 100644
--- a/src/net/java/sip/communicator/service/protocol/AdHocChatRoom.java
+++ b/src/net/java/sip/communicator/service/protocol/AdHocChatRoom.java
@@ -25,8 +25,7 @@ import net.java.sip.communicator.service.protocol.event.*;
  * Represents an ad-hoc rendez-vous point where multiple chat users could
  * communicate together. This interface describes the main methods used by some
  * protocols for multi user chat, without useless methods (such as kicking a
- * participant) which aren't supported by these protocols (MSN, ICQ, Yahoo!,
- * etc.).
+ * participant) which aren't supported by these protocols (MSN, ICQ, etc.).
  *
  * <tt>AdHocChatRoom</tt> acts like a simplified <tt>ChatRoom</tt>.
  *
diff --git a/src/net/java/sip/communicator/service/protocol/ProtocolNames.java b/src/net/java/sip/communicator/service/protocol/ProtocolNames.java
index 51ac63d..ba51c91 100644
--- a/src/net/java/sip/communicator/service/protocol/ProtocolNames.java
+++ b/src/net/java/sip/communicator/service/protocol/ProtocolNames.java
@@ -44,16 +44,6 @@ public interface ProtocolNames
     public static final String IRC = "IRC";
 
     /**
-     * The Gadu-Gadu protocol.
-     */
-    public static final String GADU_GADU = "Gadu-Gadu";
-
-    /**
-     * The GroupWise protocol.
-     */
-    public static final String GROUP_WISE = "GroupWise";
-
-    /**
      * The ICQ service protocol.
      */
     public static final String ICQ = "ICQ";
@@ -64,26 +54,11 @@ public interface ProtocolNames
     public static final String AIM = "AIM";
 
     /**
-     * The Yahoo! messenger protocol.
-     */
-    public static final String YAHOO  = "Yahoo!";
-
-    /**
-     * The Skype protocol.
-     */
-    public static final String SKYPE  = "Skype";
-
-    /**
      * The SIP Communicator MOCK protocol.
      */
     public static final String SIP_COMMUNICATOR_MOCK  = "sip-communicator-mock";
 
     /**
-     * The Zeroconf protocol.
-     */
-    public static final String ZEROCONF  = "Zeroconf";
-
-    /**
      * The SSH protocol.
      */
     public static final String SSH = "SSH";
@@ -92,9 +67,4 @@ public interface ProtocolNames
      * The Gibberish protocol.
      */
     public static final String GIBBERISH = "Gibberish";
-
-    /**
-     * The Dict protocol.
-     */
-    public static final String DICT = "Dict";
 }
diff --git a/src/net/java/sip/communicator/service/protocol/protocol.provider.manifest.mf b/src/net/java/sip/communicator/service/protocol/protocol.provider.manifest.mf
index 271af97..233eb84 100644
--- a/src/net/java/sip/communicator/service/protocol/protocol.provider.manifest.mf
+++ b/src/net/java/sip/communicator/service/protocol/protocol.provider.manifest.mf
@@ -17,12 +17,10 @@ Import-Package: net.java.sip.communicator.service.credentialsstorage,
  org.jitsi.util.event,
  org.osgi.framework
 Export-Package: net.java.sip.communicator.service.protocol,
- net.java.sip.communicator.service.protocol.aimconstants,
  net.java.sip.communicator.service.protocol.event,
  net.java.sip.communicator.service.protocol.globalstatus,
  net.java.sip.communicator.service.protocol.icqconstants,
  net.java.sip.communicator.service.protocol.jabber,
  net.java.sip.communicator.service.protocol.jabberconstants,
  net.java.sip.communicator.service.protocol.sip,
- net.java.sip.communicator.service.protocol.whiteboardobjects,
- net.java.sip.communicator.service.protocol.yahooconstants
+ net.java.sip.communicator.service.protocol.whiteboardobjects
diff --git a/src/net/java/sip/communicator/service/protocol/yahooconstants/YahooStatusEnum.java b/src/net/java/sip/communicator/service/protocol/yahooconstants/YahooStatusEnum.java
deleted file mode 100644
index d21ec033..0000000
--- a/src/net/java/sip/communicator/service/protocol/yahooconstants/YahooStatusEnum.java
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
- *
- * Copyright @ 2015 Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package net.java.sip.communicator.service.protocol.yahooconstants;
-
-import java.io.*;
-import java.util.*;
-
-import net.java.sip.communicator.service.protocol.*;
-import net.java.sip.communicator.util.*;
-
-/**
- * An enumeration containing all status instances that MUST be supported by
- * an implementation of the yahoo protocol. Implementations may
- * support other forms of PresenceStatus but they MUST ALL support those
- * enumerated here.
- * <p>
- * For testing purposes, this class also provides a <tt>List</tt> containing
- * all of the status fields.
- *
- * @author Damian Minkov
- */
-public class YahooStatusEnum
-    extends PresenceStatus
-{
-    /**
-     * The <tt>Logger</tt> used by the <tt>YahooStatusEnum</tt> class and its
-     * instances for logging output.
-     */
-    private static Logger logger = Logger.getLogger(YahooStatusEnum.class);
-
-    /**
-     * The Online status. Indicate that the user is able and willing to
-     * communicate.
-     */
-    public static final YahooStatusEnum AVAILABLE
-        = new YahooStatusEnum(65, "Available",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-online.png"));
-
-    /**
-     * The Not Available status. Indicates that the user has connectivity
-     * but might not be able to immediately act (i.e. even less immediately than
-     * when in an Away status ;-P ) upon initiation of communication.
-     */
-    public static final YahooStatusEnum BE_RIGHT_BACK
-        = new YahooStatusEnum(48, "Be Right Back",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-away.png"));
-
-    /**
-     * The Idle status. Indicates that the user is not using the messanger.
-     */
-    public static final YahooStatusEnum IDLE
-        = new YahooStatusEnum(46, "Idle",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-idle.png"));
-
-    /**
-     * The Invisible status. Indicates that the user has connectivity even
-     * though it may appear otherwise to others, to whom she would appear to be
-     * offline.
-     */
-    public static final YahooStatusEnum INVISIBLE
-        = new YahooStatusEnum(45, "Invisible",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-invisible.png"));
-
-    /**
-     * The STEPPED_OUT  status. Indicates that the user has connectivity but might
-     * not be able to immediately act upon initiation of communication.
-     */
-    public static final YahooStatusEnum STEPPED_OUT
-        = new YahooStatusEnum(40, "Stepped out",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-away.png"));
-
-    /**
-     * The Out to lunch status. Indicates that the user is eating.
-     */
-    public static final YahooStatusEnum OUT_TO_LUNCH
-        = new YahooStatusEnum(39, "Out to lunch",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-lunch.png"));
-
-    /**
-     * The Not at home status. Indicates that the user is not at home.
-     */
-    public static final YahooStatusEnum NOT_AT_HOME
-        = new YahooStatusEnum(38, "Not at home",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-na.png"));
-
-    /**
-     * The Not at desk status. Indicates that the user is not at his desk, but
-     * somewhere in the office.
-     */
-    public static final YahooStatusEnum NOT_AT_DESK
-        = new YahooStatusEnum(36, "Not at desk",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-na.png"));
-
-    /**
-     * The Not in office status. Indicates that the user is out of the office.
-     */
-    public static final YahooStatusEnum NOT_IN_OFFICE
-        = new YahooStatusEnum(34, "Not in office",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-na.png"));
-
-    /**
-     * The On vacation status. Indicates that the user is somewhere on the
-     * beach or skiing.
-     */
-    public static final YahooStatusEnum ON_VACATION
-        = new YahooStatusEnum(33, "On vacation",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-vacation.png"));
-
-    /**
-     * The On the phone status. Indicates that the user is talking to the phone.
-     */
-    public static final YahooStatusEnum ON_THE_PHONE
-        = new YahooStatusEnum(31, "On the phone",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-phone.png"));
-
-    /**
-     * The DND status. Indicates that the user has connectivity but prefers
-     * not to be contacted.
-     */
-    public static final YahooStatusEnum BUSY
-        = new YahooStatusEnum(30, "Busy",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-busy.png"));
-
-    /**
-     * The Offline status. Indicates the user does not seem to be connected
-     * to the network or at least does not want us to know she is
-     */
-    public static final YahooStatusEnum OFFLINE
-        = new YahooStatusEnum(0, "Offline",
-                loadIcon("resources/images/protocol/yahoo/yahoo16x16-offline.png"));
-
-    /**
-     * The minimal set of states that any implementation must support.
-     */
-    public static final ArrayList<YahooStatusEnum> yahooStatusSet
-        = new ArrayList<YahooStatusEnum>();
-    static{
-            yahooStatusSet.add(AVAILABLE);
-            yahooStatusSet.add(BE_RIGHT_BACK);
-            yahooStatusSet.add(BUSY);
-            yahooStatusSet.add(IDLE);
-            yahooStatusSet.add(INVISIBLE);
-            yahooStatusSet.add(NOT_AT_DESK);
-            yahooStatusSet.add(NOT_AT_HOME);
-            yahooStatusSet.add(NOT_IN_OFFICE);
-            yahooStatusSet.add(OFFLINE);
-            yahooStatusSet.add(ON_THE_PHONE);
-            yahooStatusSet.add(ON_VACATION);
-            yahooStatusSet.add(OUT_TO_LUNCH);
-            yahooStatusSet.add(STEPPED_OUT);
-    }
-
-    /**
-     * Creates a status with the specified connectivity coeff, name and icon.
-     * @param status the connectivity coefficient for the specified status
-     * @param statusName String
-     * @param statusIcon the icon associated with this status
-     */
-    protected YahooStatusEnum(int status, String statusName, byte[] statusIcon)
-    {
-        super(status, statusName, statusIcon);
-    }
-
-    /**
-     * Loads an image from a given image path.
-     * @param imagePath The identifier of the image.
-     * @return The image for the given identifier.
-     */
-    public static byte[] loadIcon(String imagePath) {
-        InputStream is = YahooStatusEnum.class.getClassLoader()
-            .getResourceAsStream(imagePath);
-
-        if(is == null)
-            return null;
-
-        byte[] icon = null;
-        try {
-            icon = new byte[is.available()];
-            is.read(icon);
-        } catch (IOException exc) {
-            logger.error("Failed to load icon: " + imagePath, exc);
-        }
-        return icon;
-    }
-}