Type: Object
The userGroupObject property of the JadeMultiWorkerTcpTransport class contains a reference to an object that you can associate with the transport group between event callbacks.
You must set the value of this property to a shared transient or a persistent object, as it must be visible to other workers.
The default value is null.
To prevent an object leak, it is your responsibility to delete this object, if required, in your implementation of the closedEvent method in the receiver class.