Exception on @Destroy for component with @Asynchronous annotation

[armsargis]

Hi I have following exception:



"20:07:17,279 INFO  [TomcatDeployment] undeploy, ctxPath=/miranda
20:07:17,282 WARN  [Component] Exception calling component @Destroy method: ttXMLInboxScanner
java.lang.NullPointerException
     at org.jboss.seam.async.AsynchronousInterceptor.isExecutingAsynchronousCall(AsynchronousInterceptor.java:63)
     at org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:46)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
     at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
     at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
     at com.webbfontaine.miranda.timer.TTXMLInboxScanner_$$_javassist_seam_5.destroy(TTXMLInboxScanner_$$_javassist_seam_5.java)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
     at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)
     at org.jboss.seam.Component.callComponentMethod(Component.java:2249)
     at org.jboss.seam.Component.callDestroyMethod(Component.java:2180)
     at org.jboss.seam.Component.destroy(Component.java:1469)
     at org.jboss.seam.contexts.Contexts.destroy(Contexts.java:251)
     at org.jboss.seam.contexts.Lifecycle.endApplication(Lifecycle.java:61)
     at org.jboss.seam.contexts.ServletLifecycle.endApplication(ServletLifecycle.java:149)
     at org.jboss.seam.servlet.SeamListener.contextDestroyed(SeamListener.java:41)
     at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3949)
     at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4615)
     at org.apache.catalina.core.ContainerBase.destroy(ContainerBase.java:1175)
     at org.apache.catalina.core.StandardContext.destroy(StandardContext.java:4705)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297)
     at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
     at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
     at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performUndeployInternal(TomcatDeployment.java:596)
     at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performUndeploy(TomcatDeployment.java:570)
     at org.jboss.web.deployers.AbstractWarDeployment.stop(AbstractWarDeployment.java:480)
     at org.jboss.web.deployers.WebModule.stopModule(WebModule.java:133)
     at org.jboss.web.deployers.WebModule.stop(WebModule.java:102)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
     at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
     at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
     at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
     at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
     at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
     at $Proxy38.stop(Unknown Source)
     at org.jboss.system.microcontainer.StartStopLifecycleAction.uninstallAction(StartStopLifecycleAction.java:56)
     at org.jboss.system.microcontainer.StartStopLifecycleAction.uninstallAction(StartStopLifecycleAction.java:37)
     at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleUninstallAction(SimpleControllerContextAction.java:79)
     at org.jboss.dependency.plugins.action.AccessControllerContextAction.uninstall(AccessControllerContextAction.java:131)
     at org.jboss.dependency.plugins.AbstractControllerContextActions.uninstall(AbstractControllerContextActions.java:58)
     at org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:354)
     at org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1664)
     at org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1275)
     at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:827)
     at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
     at org.jboss.system.ServiceController.doChange(ServiceController.java:688)
     at org.jboss.system.ServiceController.stop(ServiceController.java:510)
     at org.jboss.system.deployers.ServiceDeployer.stop(ServiceDeployer.java:170)
     at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:150)
     at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:46)
     at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalUndeploy(AbstractSimpleRealDeployer.java:69)
     at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.undeploy(AbstractRealDeployer.java:112)
     at org.jboss.deployers.plugins.deployers.DeployerWrapper.undeploy(DeployerWrapper.java:196)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.doUndeploy(DeployersImpl.java:1469)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1376)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1369)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1356)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.uninstall(DeployersImpl.java:1331)
     at org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:354)
     at org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1664)
     at org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1275)
     at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:827)
     at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
     at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:694)
     at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:679)
     at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
     at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:362)
     at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:255)
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
     at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
     at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
     at java.lang.Thread.run(Thread.java:619)
20:07:17,339 INFO  [SessionFactoryImpl] closing
20:07:17,347 INFO  [PersistenceUnitDeployment] Stopping persistence unit"




Here is my component;



`@Name("ttXMLInboxScanner")
@Scope(ScopeType.APPLICATION)
public class TTXMLInboxScanner {

    @Asynchronous
    public Future processFilesFromInbox(@Duration long duration, @IntervalDuration long interval) {

}

    @Destroy
    public void destroy() {

    }


}`



Seems its bug in SEAM also please look at:

http://www.seamframework.org/Community/AsynchronousInterceptorNullPointerOnDestroy

There was such problem before but no any answer.

[kapitanpetko]

Event context is probably already destroyed at that point, hence the exception. File a JIRA, it might get fixed.

Do you need to do something in the @Destroy method? (it is empty in the code above). If you might be able to fix it by providing your own asynchronous interceptor, instead of the default one. There are examples on the form how to customize installed interceptors if you decide to go that way.

[armsargis]

Hi Nikolay, in reality its not empty:

    @Destroy
    public void destroy() {
        shutdowning = true;
        log.info("Please trying to shutdown file processing thread pool...");
        EXECUTOR.shutdown();
        try {
            boolean isDone = EXECUTOR.awaitTermination(30, TimeUnit.SECONDS);
            if (!isDone) {
                EXECUTOR.shutdownNow();
            }
        } catch (InterruptedException ignore) {
        }
    }

I want to do clean stuff for my class in ScopeType.APPLICATION scope.

and the problem is here Seam:

   private boolean isExecutingAsynchronousCall()
   {
       return Contexts.getEventContext().isSet(AbstractDispatcher.EXECUTING_ASYNCHRONOUS_CALL);
   }

and I know that Contexts.getEventContext() is null the question why? Because of I did wrong or its bug in Seam? I problem is is my code it means @Destroy annotation behavior
should be document well because without it you need to try, have problem write in forum wait answer and etc.

Thanks a lot for answer.

Regards.

[kapitanpetko]

Probably a bug in Seam, nothing wrong with your code as far as I can see.