Hi, I have a similar problem as described in post below:
https://groups.google.com/d/msg/akka-user/Lp2hn4FfhU8/6a1EZVCmJpQJ When shutting down Tomcat, I got: 10-Nov-2017 09:47:56.517 SEVERE [main] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [akka.actor.ActorCell$$anon$1] (value [akka.actor.ActorCell$$anon$1@1f9e9475]) and a value of type [scala.collection.immutable.Nil$] (value [List()]) 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. 10-Nov-2017 09:47:56.517 SEVERE [main] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [akka.actor.ActorCell$$anon$1] (value [akka.actor.ActorCell$$anon$1@1f9e9475]) and a value of type [scala.collection.immutable.Nil$] (value [List()]) 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. 10-Nov-2017 09:47:56.535 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"] 10-Nov-2017 09:47:56.538 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"] 10-Nov-2017 09:47:56.540 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"] 10-Nov-2017 09:47:56.541 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"] And Tomcat is stuck - to shut it down completely I have to kill its process. I tried similar solution as mentioned in the post above (I use Akka 2.5.6, so there is no shutdown() and awaitTermination() methods anymore): @Override public void contextDestroyed(ServletContextEvent servletContextEvent) { ActorSystem actorSystem = (ActorSystem) WebApplicationContextUtils.getRequiredWebApplicationContext(servletContextEvent.getServletContext()).getBean("my-actor-system"); try { Await.result((Awaitable) actorSystem.terminate(), Duration.create(10, TimeUnit.SECONDS)); } catch (Exception e) { logger.warning(e.getMessage()); } } But it doesn't help at all. The Bean is created in a simple way: @Bean public ActorSystem actorSystem() { return ActorSystem.create("my-actor-system"); } Any ideas? Versions specification: Tomcat 9.0.1 Akka 2.5.6 Spring 4.2.3 -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.