public Builder setMessage(org.anychat.protobuf.ws.LoginChatProto.ChatMessageData value) {
        if (messageBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          message_ = value;
          onChanged();
        } else {
          messageBuilder_.setMessage(value);
        }

        return this;
      }
<code>optional .org.anychat.protobuf.ws.ChatMessageData message = 2;</code>
AnyChatServer/src/main/java/org/anychat/protobuf/ws/LoginChatProto.java