messageID
Type: Binary
The read-only messageID property of the JadeGenericMessage class contains a unique identifier in a binary format that is assigned to the message when it is added to a queue using the putMessage method or the beginMessage method of the JadeGenericQueue class.
The format and content of the messageID property depend on the message transport.
As some transports such as WebSphere have messageID values with trailing null characters that are part of the messageID, you should not store messageID values in fixed-length Binary variables.