private void MergeLocalToBuilder()
 {
     if (this.applicationAttemptId != null && !((ApplicationAttemptIdPBImpl)this.applicationAttemptId
                                                ).GetProto().Equals(builder.GetApplicationAttemptId()))
     {
         builder.SetApplicationAttemptId(ConvertToProtoFormat(this.applicationAttemptId));
     }
 }