Bug 55628 Ctrl+o Filters not persistent when set via view menu
I20040322
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/CustomFiltersActionGroup.java
private Stack fLRUFilterIdsStack; 
	/**
	 * Handle to menu manager to dynamically update
	 * the last recently used filters.
	 * 
	 * @since 3.0
	 */
	private IMenuManager fMenuManager;
	/**
	 * The menu listener which dynamically updates
	 * the last recently used filters.
	 * 
	 * @since 3.0
	 */
	private IMenuListener fMenuListener;
	/**
	 * Filter Ids used in the last view menu invocation.
	 * 
	 * @since 3.0
	 */
	private String[] fFilterIdsUsedInLastViewMenu;
	private HashMap fFilterDescriptorMap;
	private String fTargetId;
	
	/**
	 * Creates a new <code>CustomFiltersActionGroup</code>.
	 * 
	 * @param part		the view part that owns this action group
	 * @param viewer	the viewer to be filtered
	 */