return checkSelection();
return checkSelection(new SubProgressMonitor(pm, 5)); } finally{ pm.done(); }
	public RefactoringStatus checkActivation(IProgressMonitor pm) throws JavaModelException {		if (fSelectionStart < 0)			return RefactoringStatus.createFatalErrorStatus("An expression must be selected to activate this refactoring");				if (!(fCu instanceof CompilationUnit))			return RefactoringStatus.createFatalErrorStatus("Internal Error");			initializeAST();				return checkSelection();	}