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 (fActive && fActiveRegion != null) {
				fRememberedPosition= new Position(fActiveRegion.getOffset(), fActiveRegion.getLength());
				try {
					event.getDocument().addPosition(fRememberedPosition);
				} catch (BadLocationException x) {
					fRememberedPosition= null;
				}
			}
		}
		/*
		 * @see org.eclipse.jface.text.IDocumentListener#documentChanged(org.eclipse.jface.text.DocumentEvent)
		 */
		public void documentChanged(DocumentEvent event) {
			if (fRememberedPosition != null) {
				if (!fRememberedPosition.isDeleted()) {
					
					event.getDocument().removePosition(fRememberedPosition);
					fActiveRegion= new Region(fRememberedPosition.getOffset(), fRememberedPosition.getLength());
					fRememberedPosition= null;
					
					ISourceViewer viewer= getSourceViewer();
					if (viewer != null) {
						StyledText widget= viewer.getTextWidget();
						if (widget != null && !widget.isDisposed()) {
							widget.getDisplay().asyncExec(new Runnable() {
								public void run() {
									deactivate();
								}
							});
						}