Christian Kalkhoff created CAMEL-18821:
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Summary: camel-core - Thread hangs on transacted routes after
aggregation and multiplex (possibly more)
Key: CAMEL-18821
URL: https://issues.apache.org/jira/browse/CAMEL-18821
Project: Camel
Issue Type: Bug
Components: camel-core
Environment: Quarkus 3.18.3, 3.18.4, 3.19.0 in TomEE 8.0.13 on JDK 17
(Termium).
Reporter: Christian Kalkhoff
When an aggregator runs in the same thread as the transacted route (Using
org.apache.camel.util.concurrent.SynchronousExecutorService for
executorService), the thread hands after completion (error or not) at
camel-base-engine-3.19.0-sources.jar!/org/apache/camel/impl/engine/DefaultAsyncProcessorAwaitManager.java:107
{code:java}
latch.await(); {code}
If I run latch.countDown() in a debugger, the thread continues just fine.
For the success case I found the workaround to set
{{{}jtaTransactionErrorHandler(){}}}for the route containing the aggregator.
Still in case of an exception thrown from the code processing the aggregated
messages, the thread hangs.
See
[https://camel.zulipchat.com/#narrow/stream/257298-camel/topic/Deadlock.20in.20transacted.20route.2E.20is.20this.20a.20bug.3F]
for the discussion on this.
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