Bug 62612 NPE in EclipsePreferences.internalGet(...)
I200405171219 + ZRH smoke plugin-export 20040518_1115 After start and shutdown of the Buildmeister runtime I found the following exception. It looks like getTextPreferenceKey() in AbstractAnnotationHover#getHoverInfo() at line 83 returned null. java.lang.NullPointerException at org.eclipse.core.internal.preferences.EclipsePreferences.internalGet(EclipsePreferences.java:479) at org.eclipse.core.internal.preferences.EclipsePreferences.get(EclipsePreferences.java:349) at org.eclipse.core.internal.preferences.PreferenceForwarder.contains(PreferenceForwarder.java:181) at org.eclipse.ui.plugin.AbstractUIPlugin$CompatibilityPreferenceStore.contains(AbstractUIPlugin.java:277) at org.eclipse.ui.texteditor.ChainedPreferenceStore.getVisibleStore(ChainedPreferenceStore.java:525) at org.eclipse.ui.texteditor.ChainedPreferenceStore.getBoolean(ChainedPreferenceStore.java:166) at org.eclipse.jdt.internal.ui.text.java.hover.AbstractAnnotationHover.getHoverInfo(AbstractAnnotationHover.java:83) at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo(BestMatchHover.java:102) at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo(JavaEditorTextHoverProxy.java:69) at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:161)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (fActiveRegion == null)
				return;
	
			ISourceViewer viewer= getSourceViewer();
			if (viewer == null)
				return;
				
			StyledText text= viewer.getTextWidget();
			if (text == null || text.isDisposed())
				return;
				
				
			int offset= 0;
			int length= 0;
			if (viewer instanceof ITextViewerExtension5) {
				
				ITextViewerExtension5 extension= (ITextViewerExtension5) viewer;
				IRegion widgetRange= extension.modelRange2WidgetRange(fActiveRegion);
				if (widgetRange == null)
					return;
					
				offset= widgetRange.getOffset();
				length= widgetRange.getLength();
				
			} else {
				
				IRegion region= viewer.getVisibleRegion();			
				if (!includes(region, fActiveRegion))
					return;