Bug 95937 Leverage new initializeAferLoad method from JDT/Core
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/workingsets/WorkingSetFilterActionGroup.java
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.ActionGroup;
import org.eclipse.jdt.internal.ui.search.WorkingSetComparator;
/**
 * Working set filter actions (set / clear)
 * 
 * @since 2.0
 * 
 */
public class WorkingSetFilterActionGroup extends ActionGroup implements IWorkingSetActionGroup {
	private static final String TAG_WORKING_SET_NAME= "workingSetName"; 
	private static final String LRU_GROUP= "workingSet_lru_group"; 
	private WorkingSetFilter fWorkingSetFilter;
	
	private IWorkingSet fWorkingSet= null;
	
	private ClearWorkingSetAction fClearWorkingSetAction;
	private SelectWorkingSetAction fSelectWorkingSetAction;
	private EditWorkingSetAction fEditWorkingSetAction;
	
	private IPropertyChangeListener fWorkingSetListener;
	
	private IPropertyChangeListener fChangeListener;