Bug 41443 overview ruler not working
smoke test for 20030812 The overview ruler in the Java editor does not work when starting with a fresh workspace as described in the smoke test scenario.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
fEditorSelectionChangedListener= null;
		}
				
		super.dispose();
	}
	
	protected void createActions() {
		super.createActions();
		
		ResourceAction resAction= new AddTaskAction(JavaEditorMessages.getResourceBundle(), "AddTask.", this); 
		resAction.setHelpContextId(IAbstractTextEditorHelpContextIds.ADD_TASK_ACTION);
		resAction.setActionDefinitionId(ITextEditorActionDefinitionIds.ADD_TASK);
		setAction(ITextEditorActionConstants.ADD_TASK, resAction);
		ActionGroup oeg, ovg, jsg, sg;
		fActionGroups= new CompositeActionGroup(new ActionGroup[] {
			oeg= new OpenEditorActionGroup(this),
			sg= new ShowActionGroup(this),
			ovg= new OpenViewActionGroup(this),
			jsg= new JavaSearchActionGroup(this)
		});
		fContextMenuGroup= new CompositeActionGroup(new ActionGroup[] {oeg, ovg, sg, jsg});
		
		resAction= new TextOperationAction(JavaEditorMessages.getResourceBundle(), "ShowJavaDoc.", this, ISourceViewer.INFORMATION, true); 
		resAction= new InformationDispatchAction(JavaEditorMessages.getResourceBundle(), "ShowJavaDoc.", (TextOperationAction) resAction); 
		resAction.setActionDefinitionId(IJavaEditorActionDefinitionIds.SHOW_JAVADOC);
		setAction("ShowJavaDoc", resAction); 
		WorkbenchHelp.setHelp(resAction, IJavaHelpContextIds.SHOW_JAVADOC_ACTION);
		
		Action action= new GotoMatchingBracketAction(this);
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.GOTO_MATCHING_BRACKET);