Bug 67814 Show In > Package Explorer doesn't ask for removal of last filter [package explorer]
200406180010; Not a dup of 66646. 'Show In > Package Explorer' doesn't ask for removal of a filter iff there's only a single filter set. Steps: - Disable all filters in Package Explorer, except for 'Referenced Libraries'. - Open editor for java.util.Vector - Navigate > Show In > Package Explorer => fails, doesn't ask for filter removal. Works iff at least one other filter (which would not filter the element) is active.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/CustomFiltersActionGroup.java
}
	private void fillToolBar(IToolBarManager tooBar) {
	}
	/**
	 * Fills the given view menu with the entries managed by the
	 * group.
	 * 
	 * @param viewMenu the menu to fill
	 */
	public void fillViewMenu(IMenuManager viewMenu) {
		/*
		 * Don't change the separator group name.
		 * Using this name ensures that other filters
		 * get contributed to the same group.
		 */
		viewMenu.add(new Separator("filters")); 
		viewMenu.add(new GroupMarker(RECENT_FILTERS_GROUP_NAME));
		viewMenu.add(new ShowFilterDialogAction());
		fMenuManager= viewMenu;
		fMenuListener= new IMenuListener() {
			public void menuAboutToShow(IMenuManager manager) {
				removePreviousLRUFilterActions(manager);
				addLRUFilterActions(manager);
			}
		};
		fMenuManager.addMenuListener(fMenuListener);
	}
	private void removePreviousLRUFilterActions(IMenuManager mm) {
		if (fFilterIdsUsedInLastViewMenu == null)
			return;