diff --git org.eclipse.mylyn.tasks/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/TaskInitializationData.java org.eclipse.mylyn.tasks/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/TaskInitializationData.java

index 39c3f1f..5bc9214 100644

--- org.eclipse.mylyn.tasks/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/TaskInitializationData.java

+++ org.eclipse.mylyn.tasks/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/TaskInitializationData.java

@@ -191,7 +191,6 @@ public class TaskInitializationData implements ITaskMapping {

 	/**

 	 * Throws {@link UnsupportedOperationException}.

 	 */

-	@Nullable

 	public void merge(ITaskMapping source) {

 		throw new UnsupportedOperationException();

 	}

@@ -248,4 +247,4 @@ public class TaskInitializationData implements ITaskMapping {

 		attributesById.setAttribute(TaskAttribute.VERSION, version);

 	}

-}

\ No newline at end of file

+}