Bug 63351 [Navigator] Import/ExportResourcesAction not removed as listeners of selection service
Open and closing the navigator view, these actions are leaked. It would appear that the dispose for these actions is not getting called?
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/MainActionGroup.java
protected AddBookmarkAction addBookmarkAction;
	protected AddTaskAction addTaskAction;	
	protected PropertyDialogAction propertyDialogAction;
	protected ImportResourcesAction importAction;
	protected ExportResourcesAction exportAction;
	protected CollapseAllAction collapseAllAction;
	protected ToggleLinkingAction toggleLinkingAction;
	
	protected GotoActionGroup gotoGroup;
	protected OpenActionGroup openGroup;
	protected RefactorActionGroup refactorGroup;
	protected WorkingSetFilterActionGroup workingSetGroup;
	protected SortAndFilterActionGroup sortAndFilterGroup;
	protected WorkspaceActionGroup workspaceGroup;
	private IResourceChangeListener resourceChangeListener;
	
	/**
	 * Constructs the main action group.
	 */
	public MainActionGroup(IResourceNavigator navigator) {
		super(navigator);
		resourceChangeListener = new IResourceChangeListener() {
			public void resourceChanged(IResourceChangeEvent event) {
				handleResourceChanged(event);
			}
		};
		ResourcesPlugin.getWorkspace().addResourceChangeListener(resourceChangeListener, IResourceChangeEvent.POST_CHANGE);
		makeSubGroups();