[jira] [Commented] (CAMEL-18821) camel-core - Thread hangs on transacted routes after aggregation and multiplex (possibly more)

["Rhuan Rocha (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-18821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17687358#comment-17687358 ] 

Rhuan Rocha commented on CAMEL-18821:
-------------------------------------

Hi, 

Do you have a reproducer of this issue?

> 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
>            Priority: Major
>             Fix For: 3.x
>
>
> When an aggregator runs in the same thread as the transacted route (Using org.apache.camel.util.concurrent.SynchronousExecutorService for executorService), the thread hangs 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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