Hi All, Above issue is occurring in the lazyUnload method in webapp-mgt. This occurs because of not properly unloading the osgi bundles.
After having a offline chat with Azeez, We have put a simple null check before unload the the webapp and commit a new version of org.wso2.carbon.webapp.mgt (4.2.1) to chunk 2. Then CEP 3.0.0 can use that as a dependency. As per the chat with sameera, I have added a carbon jira for this issue.. Please find the below jira .. https://wso2.org/jira/browse/CARBON-14475 Thanks & Regards, Mohan On Wed, Sep 11, 2013 at 12:35 PM, Sriskandarajah Suhothayan <[email protected]>wrote: > > > webapp.mgt lazyUnload happens 3 times per webapp when shutting down the > server (in both CEP and AS), here on the 1st two times the cleanup is > called by the carbon server shutdown hock and the 3rd time by some other > thread. In CEP on 3rd time a null pointer is thrown. since the tomcat > service is getting unregistered before the call > > You can find the issue at > https://wso2.org/jira/browse/CEP-370 > > and following is the thread dump at the time of exception > > > "localhost-startStop-2@10251" daemon prio=5 tid=0x8d nid=NA runnable > java.lang.Thread.State: RUNNABLE > at > org.wso2.carbon.webapp.mgt.WebApplication.lazyUnload(WebApplication.java:358) > at > org.wso2.carbon.webapp.mgt.WebApplication.lazyUnload(WebApplication.java:354) > at > org.wso2.carbon.webapp.mgt.TomcatGenericWebappsDeployer.lazyUnload(TomcatGenericWebappsDeployer.java:379) > at > org.wso2.carbon.webapp.mgt.AbstractWebappDeployer.cleanup(AbstractWebappDeployer.java:259) > at > org.apache.axis2.deployment.DeploymentEngine.cleanup(DeploymentEngine.java:1386) > at > org.wso2.carbon.core.CarbonAxisConfigurator.cleanup(CarbonAxisConfigurator.java:449) > at > org.apache.axis2.engine.AxisConfiguration.cleanup(AxisConfiguration.java:1438) > at > org.apache.axis2.context.ConfigurationContext.terminate(ConfigurationContext.java:788) > at > org.apache.axis2.transport.http.AxisServlet.destroy(AxisServlet.java:528) > at > org.eclipse.equinox.http.servlet.internal.ServletRegistration.destroy(ServletRegistration.java:38) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.unregister(ProxyServlet.java:153) > - locked <0x2868> (a > org.eclipse.equinox.http.servlet.HttpServiceServlet) > at > org.eclipse.equinox.http.servlet.internal.HttpServiceImpl.unregister(HttpServiceImpl.java:88) > - locked <0x2875> (a > org.eclipse.equinox.http.servlet.internal.HttpServiceImpl) > at > org.wso2.carbon.core.init.CarbonServerManager.stop(CarbonServerManager.java:925) > at > org.wso2.carbon.core.internal.CarbonCoreServiceComponent.deactivate(CarbonCoreServiceComponent.java:82) > at > sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1) > 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.eclipse.equinox.internal.ds.model.ServiceComponent.deactivate(ServiceComponent.java:387) > at > org.eclipse.equinox.internal.ds.model.ServiceComponentProp.deactivate(ServiceComponentProp.java:161) > at > org.eclipse.equinox.internal.ds.model.ServiceComponentProp.dispose(ServiceComponentProp.java:389) > at > org.eclipse.equinox.internal.ds.model.ServiceComponentProp.dispose(ServiceComponentProp.java:102) > at > org.eclipse.equinox.internal.ds.InstanceProcess.disposeInstances(InstanceProcess.java:344) > at > org.eclipse.equinox.internal.ds.InstanceProcess.disposeInstances(InstanceProcess.java:306) > at > org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:368) > at > org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222) > at > org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107) > at > org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861) > at > org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) > at > org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) > at > org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819) > at > org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771) > at > org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:225) > at > org.eclipse.equinox.http.servlet.internal.Activator.removeProxyServlet(Activator.java:87) > - locked <0x91d> (a java.lang.Class) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.destroy(ProxyServlet.java:44) > at > org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.destroy(DelegationServlet.java:43) > at > org.apache.catalina.core.StandardWrapper.unload(StandardWrapper.java:1465) > - locked <0x286a> (a org.apache.catalina.core.StandardWrapper) > at > org.apache.catalina.core.StandardWrapper.stopInternal(StandardWrapper.java:1823) > at > org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) > at > org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5463) > - locked <0x286b> (a org.apache.catalina.core.StandardContext) > at > org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) > at > org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1575) > at > org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1564) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:662) > > > Thanks > Suho > -- > *S. Suhothayan > * > Associate Technical Lead, > *WSO2 Inc. *http://wso2.com * > <http://wso2.com/>* > lean . enterprise . middleware > > *cell: (+94) 779 756 757 | blog: http://suhothayan.blogspot.com/ > twitter: http://twitter.com/suhothayan | linked-in: > http://lk.linkedin.com/in/suhothayan* > * > * > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- *V. Mohanadarshan* *Software Engineer,* *Data Technologies Team,* *WSO2, Inc. http://wso2.com * *lean.enterprise.middleware.* * * email: [email protected] phone:(+94) 771117673
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