Comment 1 Serano Colameo 2011-06-08 06:57:34 EDT

org.eclipse.jface.text reported an NPE during refreshing the project.

see description

~serano

Comment 2 Sebastian Zarnekow 2011-06-08 07:00:40 EDT

(In reply to comment #1)
> org.eclipse.jface.text reported an NPE during refreshing the project.
> 
> see description
> 
> ~serano

Did you see the NPE in the logs or did you get an error dialog?

Comment 3 Serano Colameo 2011-06-08 07:15:13 EDT

in the error log view.

~serano

Comment 4 makho_gapr 2011-06-27 15:15:34 EDT

Complete stack trace:


!ENTRY org.eclipse.ui 4 0 2011-06-27 21:10:31.712
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NullPointerException
	at org.eclipse.xtext.resource.IGlobalServiceProvider$ResourceServiceProviderImpl.findService(IGlobalServiceProvider.java:59)
	at org.eclipse.xtext.ui.editor.hover.DispatchingEObjectTextHover.getHoverInfo(DispatchingEObjectTextHover.java:31)
	at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover$2.exec(AbstractEObjectHover.java:69)
	at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover$2.exec(AbstractEObjectHover.java:1)
	at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32)
	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:86)
	at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover.getHoverInfo2(AbstractEObjectHover.java:65)
	at org.eclipse.xtext.ui.editor.hover.AbstractCompositeHover.getHoverRegion(AbstractCompositeHover.java:67)
	at org.eclipse.jface.text.TextViewerHoverManager.computeInformation(TextViewerHoverManager.java:140)
	at org.eclipse.jface.text.AbstractInformationControlManager.doShowInformation(AbstractInformationControlManager.java:1131)
	at org.eclipse.jface.text.AbstractHoverInformationControlManager$MouseTracker.mouseHover(AbstractHoverInformationControlManager.java:519)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

Comment 5 Jan Koehnlein 2011-07-06 11:55:53 EDT

Looking at the code, Xtext seems to try to extract the hover information for an EObject that is not in a resource (the EObject could not be a proxy or null as this is ruled out by prior checks and the whole thing happens in a read transaction). Are you creating any volatile EObjects during linking which are not in a resource?

Comment 6 Serano Colameo 2011-07-06 12:59:52 EDT

(In reply to comment #5)
> Looking at the code, Xtext seems to try to extract the hover information for an
> EObject that is not in a resource (the EObject could not be a proxy or null as
> this is ruled out by prior checks and the whole thing happens in a read
> transaction). Are you creating any volatile EObjects during linking which are
> not in a resource?

if i remember correctly, the issue happened in the xtend2 editor.

Comment 7 Sebastian Zarnekow 2011-11-09 14:47:29 EST

Please reopen if it happens again.

Comment 8 Karsten Thoms 2017-09-19 17:59:21 EDT

Closing all bugs that were set to RESOLVED before Neon.0

Comment 9 Karsten Thoms 2017-09-19 18:10:03 EDT

Closing all bugs that were set to RESOLVED before Neon.0