Bug 365418

Description Ed Willink 2011-12-02 07:49:01 EST

Somehow, I had an EObject with a null eResource() so I got

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:73)
	at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover$2.exec(AbstractEObjectHover.java:1)
	at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32)
	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:78)
	at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover.getHoverInfo2(AbstractEObjectHover.java:69)
	at org.eclipse.xtext.ui.editor.hover.AbstractCompositeHover.getHoverRegion(AbstractCompositeHover.java:67)
	at org.eclipse.jface.text.TextViewerHoverManager.computeInformation(TextViewerHoverManager.java:140)
	at org.eclipse.jface.text.AbstractInformationControlManager.doShowInformation(AbstractInformationControlManager.java:1131)
	at org.eclipse.jface.text.AbstractHoverInformationControlManager$MouseTracker.mouseHover(AbstractHoverInformationControlManager.java:519)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)

Unfortunately the NPE locks out all hover text thereafter. It would be nice to leave hover text in place, and perhaps improve or eliminate the console diagnostic.