if (fEditor instanceof JavaEditor) {
if (isInstalled()) {
	protected void handleProjectionEnabled() {		// http://home.ott.oti.com/teams/wswb/anon/out/vms/index.html		// projectionEnabled messages are not always paired with projectionDisabled		// i.e. multiple enabled messages may be sent out.		// we have to make sure that we disable first when getting an enable		// message.		handleProjectionDisabled();		if (fEditor instanceof JavaEditor) {			initialize();			fElementListener= new ElementChangedListener();			JavaCore.addElementChangedListener(fElementListener);		}	}