if (resourceExists(RenameResourceChange.renamedResourcePath(ResourceUtil.getResource(cu).getFullPath(), newName)))
if (resourceExists(RenameResourceChange.renamedResourcePath(ResourceUtil.getResource(cu).getFullPath(), newName + ".java")))
	public static RefactoringStatus checkCompilationUnitNewName(ICompilationUnit cu, String newName) throws JavaModelException{		if (resourceExists(RenameResourceChange.renamedResourcePath(ResourceUtil.getResource(cu).getFullPath(), newName)))			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString("Checks.cu_name_used", newName));//$NON-NLS-1$		else			return new RefactoringStatus();	}