Bug 40788 [plan item] Configurable Next/Previous actions
Toolbar drop down, or editor specific control. Needs to be coordinated with Platform UI.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPlugin.java
public static final boolean USE_WORKING_COPY_OWNERS= false;
	
	
	private static JavaPlugin fgJavaPlugin;
	private IWorkingCopyManager fWorkingCopyManager;
	private CompilationUnitDocumentProvider fCompilationUnitDocumentProvider;
	private ClassFileDocumentProvider fClassFileDocumentProvider;
	private JavaTextTools fJavaTextTools;
	private ProblemMarkerManager fProblemMarkerManager;
	private ImageDescriptorRegistry fImageDescriptorRegistry;
	
	private JavaElementAdapterFactory fJavaElementAdapterFactory;
	private MarkerAdapterFactory fMarkerAdapterFactory;
	private EditorInputAdapterFactory fEditorInputAdapterFactory;
	private ResourceAdapterFactory fResourceAdapterFactory;
	private LogicalPackageAdapterFactory fLogicalPackageAdapterFactory;
	
	private MembersOrderPreferenceCache fMembersOrderPreferenceCache;
	private IPropertyChangeListener fFontPropertyChangeListener;
	
	private JavaEditorTextHoverDescriptor[] fJavaEditorTextHoverDescriptors;
	
	
	public static JavaPlugin getDefault() {
		return fgJavaPlugin;
	}
	
	public static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}