Bug in method doReceive method of JmsTemplate class

[mubashir]

In doReceive method of JmsTemplate class every message is acknowledged regardless of what SessionAcknowledgeMode property is set. It caused exception when I used Websphere MQ with SessionAcknowledgeMode property set as AUTO_ACKNOWLEDGE. I had to set it to CLIENT_ACKNOWLWDGE to escape the exception.

[robh]

Can you post this as bug report on JIRA along with the error you received and, if possible, relevant snippets from your code?

Much appreciated!

Rob

[Juergen Hoeller]

Note that the JMS spec says the following (JMS 1.1, section 3.6):

"All JMS messages support the acknowledge method for use when a client has specified that a JMS consumer’s messages are to be explicitly acknowledged.

If a client uses automatic acknowledgment, calls to acknowledge are ignored."

So it should be OK to call acknowledge in any case - it seems that WebSphere JMS is misbehaving here.

Nevertheless, we can check for the JMS Session for CLIENT_ACKNOWLEDGE and just call acknowledge in that case. This should also work with WebSphere JMS.

Juergen

[Juergen Hoeller]

Nevertheless, we can check for the JMS Session for CLIENT_ACKNOWLEDGE and just call acknowledge in that case. This should also work with WebSphere JMS.

I've just added such a check: On JMS 1.1, it checks session.getAcknowledgeMode(); on JMS 1.0.2, it checks the setting on the template (which will work in all usual cases too).

Juergen