fix findbugs warnings

* synchronize date parsing
* use commons date formatting

1 files changed, 4 insertions, 4 deletions

diff --git a/main/src/cgeo/geocaching/files/GPXParser.java b/main/src/cgeo/geocaching/files/GPXParser.java
index 7d33769..e01c191 100644
--- a/main/src/cgeo/geocaching/files/GPXParser.java
+++ b/main/src/cgeo/geocaching/files/GPXParser.java
@@ -20,6 +20,7 @@ import cgeo.geocaching.list.StoredList;
 import cgeo.geocaching.utils.CancellableHandler;
 import cgeo.geocaching.utils.Log;
 import cgeo.geocaching.utils.MatcherWrapper;
+import cgeo.geocaching.utils.SynchronizedDateFormat;
 
 import org.apache.commons.lang3.StringUtils;
 import org.xml.sax.Attributes;
@@ -35,7 +36,6 @@ import android.util.Xml;
 import java.io.IOException;
 import java.io.InputStream;
 import java.text.ParseException;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Date;
@@ -47,9 +47,9 @@ import java.util.regex.Pattern;
 
 public abstract class GPXParser extends FileParser {
 
-    private static final SimpleDateFormat formatSimple = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US); // 2010-04-20T07:00:00
-    private static final SimpleDateFormat formatSimpleZ = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US); // 2010-04-20T07:00:00Z
-    private static final SimpleDateFormat formatTimezone = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.US); // 2010-04-20T01:01:03-04:00
+    private static final SynchronizedDateFormat formatSimple = new SynchronizedDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US); // 2010-04-20T07:00:00
+    private static final SynchronizedDateFormat formatSimpleZ = new SynchronizedDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US); // 2010-04-20T07:00:00Z
+    private static final SynchronizedDateFormat formatTimezone = new SynchronizedDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.US); // 2010-04-20T01:01:03-04:00
 
     /**
      * Attention: case sensitive geocode pattern to avoid matching normal words in the name or description of the cache.