Bug 53839 new search: remember the sort options
I20040302 the group-by capabilties and the buttons are great. So good that I would want the group-by setting to be remembered across sessions.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPlugin.java
private EditorInputAdapterFactory fEditorInputAdapterFactory;
	private ResourceAdapterFactory fResourceAdapterFactory; 
	private LogicalPackageAdapterFactory fLogicalPackageAdapterFactory;
	
	private MembersOrderPreferenceCache fMembersOrderPreferenceCache;
	private IPropertyChangeListener fFontPropertyChangeListener;
	/**
	 * Property change listener on this plugin's preference store.
	 * 
	 * @since 3.0
	 */
	private IPropertyChangeListener fPropertyChangeListener;
	
	private JavaEditorTextHoverDescriptor[] fJavaEditorTextHoverDescriptors;
	
	/**
	 * Mockup preference store for firing events and registering listeners on project setting changes.
	 * FIXME: Temporary solution.
	 * 
	 * @since 3.0
	 */
	private MockupPreferenceStore fMockupPreferenceStore;
	
	private static ContextTypeRegistry fgContextTypeRegistry;
	
	public static JavaPlugin getDefault() {
		return fgJavaPlugin;
	}
	
	public static IWorkspace getWorkspace() {