1 files changed, 5 insertions, 3 deletions
diff --git a/main/src/cgeo/geocaching/files/FileParser.java b/main/src/cgeo/geocaching/files/FileParser.java
index 396a589..973e65f 100644
--- a/main/src/cgeo/geocaching/files/FileParser.java
+++ b/main/src/cgeo/geocaching/files/FileParser.java
@@ -4,6 +4,8 @@ import cgeo.geocaching.Geocache;
 import cgeo.geocaching.utils.CancellableHandler;
 
 import org.apache.commons.io.IOUtils;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedReader;
@@ -29,7 +31,7 @@ public abstract class FileParser {
      * @throws ParserException
      *             if the input stream contains data not matching the file format of the parser
      */
-    public abstract Collection<Geocache> parse(final InputStream stream, final CancellableHandler progressHandler) throws IOException, ParserException;
+    public abstract Collection<Geocache> parse(@NonNull final InputStream stream, @Nullable final CancellableHandler progressHandler) throws IOException, ParserException;
 
     /**
      * Convenience method for parsing a file.
@@ -49,7 +51,7 @@ public abstract class FileParser {
         }
     }
 
-    protected static StringBuilder readStream(InputStream is, CancellableHandler progressHandler) throws IOException {
+    protected static StringBuilder readStream(@NonNull final InputStream is, @Nullable final CancellableHandler progressHandler) throws IOException {
         final StringBuilder buffer = new StringBuilder();
         ProgressInputStream progressInputStream = new ProgressInputStream(is);
         final BufferedReader input = new BufferedReader(new InputStreamReader(progressInputStream, "UTF-8"));
@@ -66,7 +68,7 @@ public abstract class FileParser {
         }
     }
 
-    protected static void showProgressMessage(final CancellableHandler handler, final int bytesRead) {
+    protected static void showProgressMessage(@Nullable final CancellableHandler handler, final int bytesRead) {
         if (handler != null) {
             if (handler.isCancelled()) {
                 throw new CancellationException();