Bug 60349 [implementation] reduce warnings due to core.runtime deprecations
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
* Updates the occurrences annotations based
	 * on the current selection.
	 * 
	 * @param selection the text selection
	 * @param astRoot the compilation unit AST
	 * @since 3.0
	 */
	protected void updateOccurrenceAnnotations(ITextSelection selection, CompilationUnit astRoot) {
		if (fOccurrencesFinderJob != null)
			fOccurrencesFinderJob.cancel();
		if (!fMarkOccurrenceAnnotations)
			return;
		
		if (astRoot == null || selection == null)
			return;
		
		IDocument document= getSourceViewer().getDocument();
		if (document == null)
			return;
				
		List matches= new ArrayList();
		String message;
		if (fMarkExceptionOccurrences || fMarkTypeOccurrences) {
			ExceptionOccurrencesFinder exceptionFinder= new ExceptionOccurrencesFinder();
			message= exceptionFinder.initialize(astRoot, selection.getOffset(), selection.getLength());
			if (message == null) {
				matches= exceptionFinder.perform();
			}
		}
		if (matches.size() == 0) {