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From "Martin Ritchie (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Created: (QPID-2242) JMS_QPID_DESTTYPE is not set making getJMSDestination unusable.
Date Fri, 04 Dec 2009 17:52:20 GMT
JMS_QPID_DESTTYPE is not set making getJMSDestination unusable.
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                 Key: QPID-2242
                 URL: https://issues.apache.org/jira/browse/QPID-2242
             Project: Qpid
          Issue Type: Bug
            Reporter: Martin Ritchie


The problem is that Qpid M2.1 (and earlier) sets the JMS_QPID_DESTTYPE header property before
sending. 
If you try and do that on a message that doesn't have the property set then it will attempt
to write it into the _encodedForm ByteBuffer if there is one.

In the scenario where you are receiving messages and then re-sending them not creating new
ones. The header has already been read so the buffer limit and position are the same which
means any write to the buffer will throw a BufferOverflowException. In short the headers are
Read Only.

I have tested with M2.1 After the merge to trunk for M3 the setting of this property was removed.
Which does mean that the JMS Destination is marked as 'unknown' rather than 'direct' which
means if you attempted to do message.getJMSDestination() to send the message back in to the
queue for reprocessing it would fail.

Further investigations:
Understand why this setting was dropped after the Merge from M2.x to trunk. This property
is used to control the type of Destination that message.getJMSDestination() returns.

Need to check M1 to see if it sets the value on sent Messages.

Also need to check how the 0-10 code path defines the JMSDestination() as it too appears to
never to have a value set and so will be an 'unknown' destination.

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