if (mustCancelRenamingType())
if (cancelTypeRenameDueToParseErrors())
	public RefactoringStatus checkPreactivation() throws JavaModelException {		try{			ICompilationUnit cu= fCu;						if (cu.isReadOnly())				return RefactoringStatus.createFatalErrorStatus(""); //$NON-NLS-1$						if (mustCancelRenamingType())				fWillRenameType= false;						if (fWillRenameType)				return fRenameTypeRefactoring.checkPreactivation();			else					return new RefactoringStatus();		} catch (JavaModelException e){			if (e.isDoesNotExist())				return RefactoringStatus.createFatalErrorStatus(""); //$NON-NLS-1$			throw e;		}			}