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
protected ISourceReference computeHighlightRangeSourceReference() {
		ISourceViewer sourceViewer= getSourceViewer();
		if (sourceViewer == null)
			return null;
			
		StyledText styledText= sourceViewer.getTextWidget();
		if (styledText == null)
			return null;
		
		int caret= 0;
		if (sourceViewer instanceof ITextViewerExtension5) {
			ITextViewerExtension5 extension= (ITextViewerExtension5)sourceViewer;
			caret= extension.widgetOffset2ModelOffset(styledText.getCaretOffset());
		} else {
			int offset= sourceViewer.getVisibleRegion().getOffset();
			caret= offset + styledText.getCaretOffset();
		}
		IJavaElement element= getElementAt(caret, false);
		
		if ( !(element instanceof ISourceReference))
			return null;
		
		if (element.getElementType() == IJavaElement.IMPORT_DECLARATION) {
			
			IImportDeclaration declaration= (IImportDeclaration) element;
			IImportContainer container= (IImportContainer) declaration.getParent();
			ISourceRange srcRange= null;
			
			try {
				srcRange= container.getSourceRange();