Bug 25827 Disposing of MemberFilterActionGroup
Build 2.0.2 and 2.1 When investigating an editor memory leak PR we found out that this group has a dispose method which is never called. When we then called from the editor it throw an exeption (viewer was disposed). Don't know if the group really needs dispose() if so it should get called.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerActionGroup.java
import org.eclipse.jdt.ui.actions.NavigateActionGroup;
import org.eclipse.jdt.ui.actions.ProjectActionGroup;
import org.eclipse.jdt.ui.actions.RefactorActionGroup;
import org.eclipse.jdt.ui.actions.ShowActionGroup;
import org.eclipse.jdt.internal.ui.actions.CompositeActionGroup;
import org.eclipse.jdt.internal.ui.actions.NewWizardsActionGroup;
import org.eclipse.jdt.internal.ui.preferences.AppearancePreferencePage;
import org.eclipse.jdt.internal.ui.preferences.JavaBasePreferencePage;
import org.eclipse.jdt.internal.ui.workingsets.WorkingSetFilterActionGroup;
class PackageExplorerActionGroup extends CompositeActionGroup implements ISelectionChangedListener {
	private PackageExplorerPart fPart;
	private GoIntoAction fZoomInAction;
 	private BackAction fBackAction;
	private ForwardAction fForwardAction;
	private UpAction fUpAction;
	private GotoTypeAction fGotoTypeAction;
	private GotoPackageAction fGotoPackageAction;
	private CollapseAllAction fCollapseAllAction;
	private RenameResourceAction fRenameResourceAction;
	private MoveResourceAction fMoveResourceAction;
	
	private NavigateActionGroup fNavigateActionGroup;
	private BuildActionGroup fBuildActionGroup;
	private CCPActionGroup fCCPActionGroup;
	private WorkingSetFilterActionGroup fWorkingSetFilterActionGroup;
	
	private MemberFilterActionGroup fMemberFilterActionGroup;
	private CustomFiltersActionGroup fCustomFiltersActionGroup;	
 	
	public PackageExplorerActionGroup(PackageExplorerPart part) {