Program: 72393
Project: 72393
Buggy source:
/** 
 * Construct a handler for connections established. This constructor must be called in the verticle thread, not in the director thread.
 * @param eventEmitter The JavaScript object that will emit socketevents.
 * @param socket The Vertx socket object.
 * @param sendType The send type.
 * @param receiveType The receive type.
 * @param rawBytes If true, send and received raw bytes, with nomessage framing. If false, then prepend each sent item with a length, and for received items, assume received data is prepended with a length and emit received data only when a complete message has arrived.
 * @param emitBatchDataAsAvailable Whether to emit all data available when the TCP streamis received and when rawBytes is true. This parameter is intended for socket.js module and this SocketHelper. Thus, this parameter will not be exposed to TCP socket accessors. Set this true only when the TCP stream is going to be handled by upper layer protocols to avoid non-deterministic behavior.
 */
public SocketWrapper(ScriptObjectMirror eventEmitter,Object socket,String sendType,String receiveType,boolean rawBytes,boolean emitBatchDataAsAvailable){
  _eventEmitter=eventEmitter;
  _rawBytes=rawBytes;
  _emitBatchDataAsAvailable=emitBatchDataAsAvailable;
  _socket=(NetSocket)socket;
  try {
    _sendType=Enum.valueOf(DATA_TYPE.class,sendType.trim().toUpperCase());
  }
 catch (  Exception ex) {
    if (getImageTypes().contains(sendType)) {
      _sendImageType=sendType;
      _sendType=DATA_TYPE.IMAGE;
    }
 else {
      throw new IllegalArgumentException("String_Node_Str" + sendType);
    }
  }
  try {
    _receiveType=Enum.valueOf(DATA_TYPE.class,receiveType.trim().toUpperCase());
  }
 catch (  Exception ex) {
    throw new IllegalArgumentException("String_Node_Str" + receiveType);
  }
  _socket.closeHandler((Void) -> {
synchronized (SocketWrapper.this) {
      if (_closed) {
        return;
      }
      _eventEmitter.callMember("String_Node_Str","String_Node_Str");
      _eventEmitter.callMember("String_Node_Str");
      _closed=true;
    }
  }
);
  _socket.drainHandler((Void) -> {
synchronized (SocketWrapper.this) {
      SocketWrapper.this.notifyAll();
    }
  }
);
  _socket.exceptionHandler(throwable -> {
    _error(_eventEmitter,throwable.toString());
  }
);
  _socket.handler(buffer -> {
    _processBuffer(buffer);
  }
);
}

Fixed version (ground truth):
/** 
 * Construct a handler for connections established. This constructor must be called in the verticle thread, not in the director thread.
 * @param eventEmitter The JavaScript object that will emit socketevents.
 * @param socket The Vertx socket object.
 * @param sendType The send type.
 * @param receiveType The receive type.
 * @param rawBytes If true, send and received raw bytes, with nomessage framing. If false, then prepend each sent item with a length, and for received items, assume received data is prepended with a length and emit received data only when a complete message has arrived.
 * @param emitBatchDataAsAvailable Whether to emit all data available when the TCP streamis received and when rawBytes is true. This parameter is intended for socket.js module and this SocketHelper. Thus, this parameter will not be exposed to TCP socket accessors. Set this true only when the TCP stream is going to be handled by upper layer protocols to avoid non-deterministic behavior.
 */
public SocketWrapper(ScriptObjectMirror eventEmitter,Object socket,String sendType,String receiveType,boolean rawBytes,boolean emitBatchDataAsAvailable){
  _eventEmitter=eventEmitter;
  _rawBytes=rawBytes;
  _emitBatchDataAsAvailable=emitBatchDataAsAvailable;
  _socket=(NetSocket)socket;
  try {
    _sendType=Enum.valueOf(DATA_TYPE.class,sendType.trim().toUpperCase());
  }
 catch (  Exception ex) {
    if (getImageTypes().contains(sendType)) {
      _sendImageType=sendType;
      _sendType=DATA_TYPE.IMAGE;
    }
 else {
      throw new IllegalArgumentException("String_Node_Str" + sendType);
    }
  }
  try {
    _receiveType=Enum.valueOf(DATA_TYPE.class,receiveType.trim().toUpperCase());
  }
 catch (  Exception ex) {
    throw new IllegalArgumentException("String_Node_Str" + receiveType);
  }
  _socket.closeHandler((Void) -> {
    _issueResponse(() -> {
synchronized (SocketWrapper.this) {
        if (_closed) {
          return;
        }
        _eventEmitter.callMember("String_Node_Str","String_Node_Str");
        _eventEmitter.callMember("String_Node_Str");
        _closed=true;
      }
    }
);
  }
);
  _socket.drainHandler((Void) -> {
synchronized (SocketWrapper.this) {
      SocketWrapper.this.notifyAll();
    }
  }
);
  _socket.exceptionHandler(throwable -> {
    _error(_eventEmitter,throwable.toString());
  }
);
  _socket.handler(buffer -> {
    _processBuffer(buffer);
  }
);
}