[jira] [Reopened] (CAMEL-17588) Missing Clean-Up for DefaultReactiveExecutor.Worker-ThreadLocals

["Björn Ohm (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-17588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Björn Ohm reopened CAMEL-17588:
-------------------------------

After update to 3.14.2 there are unfortunately still a large number (correlate to load) of the same Thread-Local-WARNINGS while Tomcat-Shutdown.

> Missing Clean-Up for DefaultReactiveExecutor.Worker-ThreadLocals
> ----------------------------------------------------------------
>
>                 Key: CAMEL-17588
>                 URL: https://issues.apache.org/jira/browse/CAMEL-17588
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 3.14.1
>            Reporter: Björn Ohm
>            Priority: Minor
>             Fix For: 3.11.6, 3.14.2, 3.16.0
>
>         Attachments: catalina.out
>
>
> We are running a Camel-Application on a Tomcat. While the Tomcat-Shutdown we observed a bunch of Thread-Local-WARNINGS in the catalina.out like:
> {code:java}
> 02-Feb-2022 01:31:23.810 SCHWERWIEGEND [main] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [provinzial-integration-intern] created a ThreadLocal with key of type [java.lang.ThreadLocal.SuppliedThreadLocal] (value [java.lang.ThreadLocal$SuppliedThreadLocal@4a4357f5]) and a value of type [org.apache.camel.impl.engine.DefaultReactiveExecutor.Worker] (value [org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker@76e66f23]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.{code}
> Obviously this belongs to the ThreadLocals used in {_}org.apache.camel.impl.engine.DefaultReactiveExecutor{_}.
> In the worst case, this can lead to memory problems. 
> The ThreadLocals should be cleaned up.



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