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
break;
					}
				}
			}
		}
			
		if (marker != null && !marker.equals(fLastMarkerTarget)) {
			try {
				boolean isProblem= marker.isSubtypeOf(IMarker.PROBLEM);
				IWorkbenchPage page= getSite().getPage();
				IViewPart view= page.findView(isProblem ? IPageLayout.ID_PROBLEM_VIEW: IPageLayout.ID_TASK_LIST); 
				if (view != null) {
					Method method= view.getClass().getMethod("setSelection", new Class[] { IStructuredSelection.class, boolean.class}); 
					method.invoke(view, new Object[] {new StructuredSelection(marker), Boolean.TRUE });
				}
			} catch (CoreException x) {
			} catch (NoSuchMethodException x) {
			} catch (IllegalAccessException x) {
			} catch (InvocationTargetException x) {
			}
			
		}			
	}
	
	/**
	 * Finds and marks occurrence annotations.
	 * 
	 * @since 3.0
	 */
	class OccurrencesFinderJob extends Job implements IDocumentListener {