RefactoringStatus nameCheck= getChangeMethodSignatureRefactoring().checkSignature();
if (getChangeMethodSignatureRefactoring().isSignatureSameAsInitial()){ setErrorMessage(null); setPageComplete(false); return; } RefactoringStatus nameCheck= getChangeMethodSignatureRefactoring().checkSignature();
	private void updateStatus(boolean displayErrorMessage) {		try{			RefactoringStatus nameCheck= getChangeMethodSignatureRefactoring().checkSignature();			if (nameCheck.hasFatalError()){				if (displayErrorMessage)					setErrorMessage(nameCheck.getFirstMessage(RefactoringStatus.FATAL));				setPageComplete(false);			} else {				setErrorMessage(null);					setPageComplete(true);			}			} catch (JavaModelException e){			setErrorMessage("Internal Error. Please see log for details.");			setPageComplete(false);			JavaPlugin.log(e);		};	}