gnodet opened a new pull request, #25231:
URL: https://github.com/apache/camel/pull/25231

   ## Summary
   
   Fix the `JmsReplyToIbmMQTest.testCustomJMSReplyToInOut` test failure 
introduced by the IBM MQ 10.0 upgrade in PR #25107.
   
   - IBM MQ 10.0 changed the default locale from `C` to `C.utf8`, causing the 
queue manager to use **CCSID 1208 (UTF-8)** instead of **CCSID 819 (ISO 
8859-1)**
   - This change causes the JMS reply-to mechanism to fail silently — the reply 
message never reaches `DEV.QUEUE.2`
   - Force `LANG=C` on the container to preserve the CCSID 819 behavior from MQ 
9.4.x
   
   This is a pragmatic fix to validate the CCSID hypothesis. If CI passes with 
this change, the CCSID locale change is confirmed as the root cause. A proper 
fix (supporting CCSID 1208 natively) can be investigated as a follow-up.
   
   ## Test plan
   
   - [ ] `JmsReplyToIbmMQTest.testCustomJMSReplyToInOut` should pass (currently 
fails 3/3 runs)
   - [ ] `JmsComponentIbmMQTest.testSend` should continue to pass
   - [ ] No regressions in other JMS tests
   
   _Claude Code on behalf of gnodet_


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