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NullPointerException in SetPerspective [message #870993]

Thu, 10 May 2012 09:40

Eclipse User

Hola,

I'm using Indigo and JavaSE 1.6 to create a Rap app.

I created an additional plugin which defines a new Perspective.

In the ApplicationWorkbenchWindowAdvisor of the main plugin, the configurer.setShowPerspectiveBar is set to true.

In Run Configurations I added/selected the new bundle.

When I try to switch to the new perspective, i got the following error.

Am I missing something?


java.lang.NullPointerException
	at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3715)
	at org.eclipse.ui.handlers.ShowPerspectiveHandler.openPerspective(ShowPerspectiveHandler.java:146)
	at org.eclipse.ui.handlers.ShowPerspectiveHandler.openOther(ShowPerspectiveHandler.java:118)
	at org.eclipse.ui.handlers.ShowPerspectiveHandler.execute(ShowPerspectiveHandler.java:57)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:306)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:167)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:239)
	at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:155)
	at org.eclipse.ui.internal.actions.CommandAction.run(CommandAction.java:169)
	at org.eclipse.rap.internal.design.example.builder.PerspectiveSwitcherBuilder$2.widgetSelected(PerspectiveSwitcherBuilder.java:158)
	at org.eclipse.swt.events.SelectionEvent.dispatchToObserver(SelectionEvent.java:196)
	at org.eclipse.rwt.internal.events.Event.processEvent(Event.java:44)
	at org.eclipse.swt.events.TypedEvent.processEvent(TypedEvent.java:161)
	at org.eclipse.swt.events.TypedEvent.executeNext(TypedEvent.java:201)
	at org.eclipse.swt.widgets.Display.runPendingMessages(Display.java:1143)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1133)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2733)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2694)
	at org.eclipse.ui.internal.Workbench.access$5(Workbench.java:2530)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:702)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:685)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:157)
	at org.vsoft.vmenu.web.Application.start(Application.java:18)
	at org.eclipse.rap.ui.internal.application.EntrypointApplicationWrapper.createUI(EntrypointApplicationWrapper.java:25)
	at org.eclipse.rwt.internal.lifecycle.EntryPointManager.createUI(EntryPointManager.java:81)
	at org.eclipse.rwt.internal.lifecycle.RWTLifeCycle.createUI(RWTLifeCycle.java:204)
	at org.eclipse.rwt.internal.lifecycle.RWTLifeCycle$UIThreadController.run(RWTLifeCycle.java:88)
	at java.lang.Thread.run(Thread.java:636)
	at org.eclipse.rwt.internal.lifecycle.UIThread.run(UIThread.java:101)

Re: NullPointerException in SetPerspective [message #872254 is a reply to message #870993]

Tue, 15 May 2012 15:19

Eclipse User

Hola Hugo,

our demo bundle org.eclipse.rap.demo contains different perspectives.
The bundle org.eclipse.rap.demo.databinding contributes another
perspective. Maybe you can spot the difference between your application
and this demo? Have you tried your application with RCP?

Saludos, Ralf

--
Ralf Sternberg

Twitter: @EclipseRAP
Blog: http://eclipsesource.com/blogs/

Professional services for RAP and RCP?
http://eclipsesource.com/services/rap/

Re: NullPointerException in SetPerspective [message #876059 is a reply to message #872254]

Wed, 23 May 2012 16:31

Eclipse User

Hola Ralf,

thanks for your response.

I did another try with a simple sample and it worked.

I will dig a little bit more on mine.

Gracias!

Re: NullPointerException in SetPerspective [message #886766 is a reply to message #876059]

Fri, 15 June 2012 11:41

Eclipse User

Hola Hugo,

did you find out something more on this issue?

thanks,
Agnes

Re: NullPointerException in SetPerspective [message #910662 is a reply to message #886766]

Mon, 10 September 2012 03:08

Eclipse User

Hi,

Had the same issue (rap version 1.5).
Helped to add configurer.setShowCoolBar(true) to resolve the issue.

public class ApplicationWorkbenchWindowAdvisor extends WorkbenchWindowAdvisor {

	public ApplicationWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
		super(configurer);
	}

	@Override
	public void preWindowOpen() {
		IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
		// some how cool bar is required for rap to switch perspectives,
		// otherwise - NPE
		configurer.setShowCoolBar(true);
		
.....

[Updated on: Mon, 10 September 2012 03:09] by Moderator

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