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
}
		
		private void updateKeyModifierMask() {
			String modifiers= getPreferenceStore().getString(BROWSER_LIKE_LINKS_KEY_MODIFIER);
			fKeyModifierMask= computeStateMask(modifiers);
			if (fKeyModifierMask == -1) {
				
				fKeyModifierMask= getPreferenceStore().getInt(BROWSER_LIKE_LINKS_KEY_MODIFIER_MASK);
			}
		}
		private int computeStateMask(String modifiers) {
			if (modifiers == null)
				return -1;
		
			if (modifiers.length() == 0)
				return SWT.NONE;
			int stateMask= 0;
			StringTokenizer modifierTokenizer= new StringTokenizer(modifiers, ",;.:+-* "); 
			while (modifierTokenizer.hasMoreTokens()) {
				int modifier= EditorUtility.findLocalizedModifier(modifierTokenizer.nextToken());
				if (modifier == 0 || (stateMask & modifier) == modifier)
					return -1;
				stateMask= stateMask | modifier;
			}
			return stateMask;
		}
		
		public void uninstall() {
			if (fColor != null) {
				fColor.dispose();