Bug 99140 [preferences] Syntax coloring preference page does not update preview
N20050609-0010 + JDT/Core & UI from HEAD Syntax coloring preference page does not update preview: - enable 'Auto(un)boxed expressions' -> changing one of the color or font settings does not update the preview - toggling 'Enable' updates the preview
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/SemanticHighlightingManager.java
* @return the corresponding highlighting
	 */
	private Highlighting getHighlighting(String key) {
		for (int i= 0; i < fSemanticHighlightings.length; i++) {
			SemanticHighlighting semanticHighlighting= fSemanticHighlightings[i];
			if (key.equals(semanticHighlighting.getPreferenceKey()))
				return fHighlightings[i];
		}
		return null;
	}
	/**
	 * Uninstall the semantic highlighting
	 */
	public void uninstall() {
		disable();
		if (fPreferenceStore != null) {
			fPreferenceStore.removePropertyChangeListener(this);
			fPreferenceStore= null;
		}
		fEditor= null;
		fSourceViewer= null;
		fColorManager= null;
		fConfiguration= null;
		fPresentationReconciler= null;
		fHardcodedRanges= null;
	}
	/**
	 * Disable semantic highlighting.
	 */
	private void disable() {