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
/**
			 * Should the given event be filtered?
			 * @param event The property change event.
			 * @return <code>true</code> iff the given event should be filtered.
			 */
			public boolean isFiltered(PropertyChangeEvent event);
		}
		/**
		 * Property change listener. Listens for events in the options Map and
		 * fires a {@link org.eclipse.jface.util.PropertyChangeEvent}
		 * on this adapter with arguments from the received event.
		 */
		private class PropertyChangeListener implements IPropertyChangeListener {
			/**
			 * {@inheritDoc}
			 */
			public void propertyChange(PropertyChangeEvent event) {
				if (getFilter().isFiltered(event))
					return;
				
				if (event.getNewValue() == null)
					fOptions.remove(event.getProperty());
				else
					fOptions.put(event.getProperty(), event.getNewValue());
				
				firePropertyChangeEvent(event.getProperty(), event.getOldValue(), event.getNewValue());
			}