Group and Sequence are not header fields in the standard. If you have a look at the Standard, http://download.oracle.com/otndocs/jcp/7195-jms-1.1-fr-spec-oth-JSpec/ , you can see the header fields described in Section 3.4.
The ten JMS 1.1 standard headers are as you listed, no more and no less. Section 3.5 describes Message Properties, and 3.5.9 JMS Defined Properties. You can find Group and Sequence standardised here: "JMSXGroupID and JMSXGroupSeq are standard properties clients should use if they want to group messages. All providers must support them" >From Table 3.3: JMSXGroupID *String, *Client: The identity of the message group this message is part of JMSXGroupSeq *int, *Client: The sequence number of this message within the group; the first message is 1, the second 2,... ----- Michael Hayes B.Sc. (NUI), M.Sc. (DCU), SCSA SCNA -- View this message in context: http://activemq.2283324.n4.nabble.com/What-are-the-official-default-JMSheader-fields-Group-and-Sequence-tp4506332p4508300.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
