@Override
    public void fromData(DataInput in,
        DeserializationContext context) throws IOException, ClassNotFoundException {
      super.fromData(in, context);
      grantorVersion = in.readLong();
      dlsSerialNumber = in.readInt();
      serviceName = DataSerializer.readString(in);
      processorId = in.readInt();
      opCode = in.readByte();
      if (opCode == BECOME_OP) {
        oldTurk = DataSerializer.readObject(in);
      }
    }
@return true if the message was sent
geode-core/src/main/java/org/apache/geode/distributed/internal/locks/GrantorRequestProcessor.java