CoreUtility.startBuildInBackground(fProject.getProject());
		public void apply(IDocument document) {			if (fProject != null) {				Map map= fProject.getOptions(false);				JavaModelUtil.set50CompilanceOptions(map);				fProject.setOptions(map);			} else {				Hashtable map= JavaCore.getOptions();				JavaModelUtil.set50CompilanceOptions(map);				JavaCore.setOptions(map);			}			CoreUtility.startBuildInBackground(fProject.getProject());		}