Bug 20885 Search match not revealed when in the single element view
0) enable single element view (full preference settings will be attached) 1) do a reference search for JavaPlugin.getDirtyEditors() 2) double click on a match ->the match gets quickly revealed and then the editor jumps to the top again.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
*/
	public void createPartControl(Composite parent) {			
		super.createPartControl(parent);
		fPaintManager= new PaintManager(getSourceViewer());
		if (isBracketHighlightingEnabled())
			startBracketHighlighting();
		if (isLineHighlightingEnabled())
			startLineHighlighting();
		if (isPrintMarginVisible())
			showPrintMargin();
		if (isProblemIndicationEnabled())
			startProblemIndication();
		if (isTabConversionEnabled())
			startTabConversion();
		if (isOverviewRulerVisible())
			showOverviewRuler();
		Preferences preferences= JavaCore.getPlugin().getPluginPreferences();
		preferences.addPropertyChangeListener(fPropertyChangeListener);			
	}
	
	/*
	 * @see AbstractTextEditor#handlePreferenceStoreChanged(PropertyChangeEvent)
	 */
	protected void handlePreferenceStoreChanged(PropertyChangeEvent event) {
		
		try {
			
			AdaptedSourceViewer asv= (AdaptedSourceViewer) getSourceViewer();
			if (asv != null) {