[
https://issues.apache.org/jira/browse/FELIX-4670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14172162#comment-14172162
]
J.W. Janssen commented on FELIX-4670:
-------------------------------------
I'm fine with the proposed change, the only thing I would do differently is
make use of an ExecutorService to manage threads for us instead of creating
threads manually. This would also take care of the lifecycle of the threads
when the whiteboard bundle itself is started/stopped.
(The JettyService also uses an ExecutorService, in case you need a more
detailed example).
> Deadlock in Felix HTTP service
> ------------------------------
>
> Key: FELIX-4670
> URL: https://issues.apache.org/jira/browse/FELIX-4670
> Project: Felix
> Issue Type: Bug
> Components: HTTP Service
> Affects Versions: http-2.2.0
> Environment: Websphere 7.0, IBM Java 6.0
> Reporter: Jörg Hoh
> Assignee: David Bosschaert
> Attachments: felix-4670.diff
>
>
> When we startup our webapplication, we sometimes run into a deadlock:
> {code}
> 1LKDEADLOCK Deadlock detected !!!
> NULL ---------------------
> NULL
> 2LKDEADLOCKTHR Thread "server.startup : 1" (0x0000000001DDC800)
> 3LKDEADLOCKWTR is waiting for:
> 4LKDEADLOCKMON sys_mon_t:0x00007FFFBBB61F20 infl_mon_t:
> 0x00007FFFBBB61F90:
> 4LKDEADLOCKOBJ
> org/apache/felix/http/whiteboard/internal/manager/ExtenderManager@0x00000001014B3650/0x00000001014B365C:
>
> 3LKDEADLOCKOWN which is owned by:
> 2LKDEADLOCKTHR Thread "FelixStartLevel" (0x0000000002156100)
> 3LKDEADLOCKWTR which is waiting for:
> 4LKDEADLOCKMON sys_mon_t:0x00007FFFBBBBA340 infl_mon_t:
> 0x00007FFFBBBBA3B0:
> 4LKDEADLOCKOBJ
> org/apache/felix/http/base/internal/handler/HandlerRegistry@0x00000001070D6EA0/0x00000001070D6EAC:
>
> 3LKDEADLOCKOWN which is owned by:
> 2LKDEADLOCKTHR Thread "server.startup : 1" (0x0000000001DDC800)
> NULL
> {code}
> The stacktrace of these 2 threads as indicated by the javacore file:
> {code}
> 3XMTHREADINFO "FelixStartLevel" J9VMThread:0x0000000002156100,
> j9thread_t:0x00007FFFC938B4B0, java/lang/Thread:0x0000000101580260, state:B,
> prio=5
> 3XMJAVALTHREAD (java/lang/Thread getId:0x70, isDaemon:true)
> 3XMTHREADINFO1 (native thread ID:0x5D3A, native priority:0x5,
> native policy:UNKNOWN)
> 3XMTHREADINFO2 (native stack address range
> from:0x00007FFFC530A000, to:0x00007FFFC534B000, size:0x41000)
> 3XMTHREADINFO3 Java callstack:
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/service/HttpServiceImpl.unregisterFilter(HttpServiceImpl.java:140)
>
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/service/HttpServiceImpl.unregisterFilter(HttpServiceImpl.java:76)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/FilterMapping.unregister(FilterMapping.java:90)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/FilterMapping.unregister(FilterMapping.java:83)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/ExtenderManager.unregisterMapping(ExtenderManager.java:270)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/ExtenderManager.removeMapping(ExtenderManager.java:252)
>
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/ExtenderManager.remove(ExtenderManager.java:183)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/FilterTracker.removed(FilterTracker.java:48)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/FilterTracker.removed(FilterTracker.java:24)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/AbstractTracker.removedService(AbstractTracker.java:52)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:956)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:864)
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.untrack(AbstractTracked.java:341(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:902(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:793(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireServiceEvent(EventDispatcher.java:543(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireServiceEvent(Felix.java:4401(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.access$000(Felix.java:74(Compiled Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix$1.serviceChanged(Felix.java:390(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/ServiceRegistry.unregisterService(ServiceRegistry.java:151(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:127(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/manager/AbstractComponentManager.unregisterComponentService(AbstractComponentManager.java:702(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/manager/AbstractComponentManager$State.doDeactivate(AbstractComponentManager.java:1301(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/manager/AbstractComponentManager$Satisfied.dispose(AbstractComponentManager.java:1617)
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/manager/AbstractComponentManager.disposeInternal(AbstractComponentManager.java:574(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/manager/AbstractComponentManager.dispose(AbstractComponentManager.java:404(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/config/ImmediateComponentHolder.disposeComponents(ImmediateComponentHolder.java:371(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/BundleComponentActivator.dispose(BundleComponentActivator.java:320(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/Activator.disposeComponents(Activator.java:316)
> 4XESTACKTRACE at
> org/apache/felix/scr/impl/Activator.bundleChanged(Activator.java:183(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:868(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:789(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireBundleEvent(EventDispatcher.java:514(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireBundleEvent(Felix.java:4385(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.stopBundle(Felix.java:2508)
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.setActiveStartLevel(Felix.java:1297(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:304)
> 4XESTACKTRACE at java/lang/Thread.run(Thread.java:761)
> {code}
> {code}
> 3XMTHREADINFO "server.startup : 1" J9VMThread:0x0000000001DDC800,
> j9thread_t:0x00007FFFC8C61340, java/lang/Thread:0x00000001014B35A8, state:B,
> prio=5
> 3XMJAVALTHREAD (java/lang/Thread getId:0x68, isDaemon:true)
> 3XMTHREADINFO1 (native thread ID:0x5A08, native priority:0x5,
> native policy:UNKNOWN)
> 3XMTHREADINFO2 (native stack address range
> from:0x00007FFFC64D4000, to:0x00007FFFC6515000, size:0x41000)
> 3XMTHREADINFO3 Java callstack:
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/manager/ExtenderManager.remove(ExtenderManager.java:183)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/ServletTracker.removed(ServletTracker.java:48)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/ServletTracker.removed(ServletTracker.java:24)
> 4XESTACKTRACE at
> org/apache/felix/http/whiteboard/internal/tracker/AbstractTracker.removedService(AbstractTracker.java:52)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:956)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:864)
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.untrack(AbstractTracked.java:341(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:902(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeServiceLi
> stenerCallback(EventDispatcher.java:932(Compiled Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:793(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireServiceEvent(EventDispatcher.java:543(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireServiceEvent(Felix.java:4401(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.access$000(Felix.java:74(Compiled Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix$1.serviceChanged(Felix.java:390(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/ServiceRegistry.unregisterService(ServiceRegistry.java:151(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:127(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/inventory/impl/InventoryPrinterAdapter.unregisterConsole(InventoryPrinterAdapter.java:84)
> 4XESTACKTRACE at
> org/apache/felix/inventory/impl/InventoryPrinterManagerImpl.addService(InventoryPrinterManagerImpl.java:196)
> 4XESTACKTRACE at
> org/apache/felix/inventory/impl/InventoryPrinterManagerImpl.addingService(InventoryPrinterManagerImpl.java:128)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.trackAdding(AbstractTracked.java:256(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.track(AbstractTracked.java:229(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:793(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireServiceEvent(EventDispatcher.java:543(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireServiceEvent(Felix.java:4401(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.registerService(Felix.java:3411(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/BundleContextImpl.registerService(BundleContextImpl.java:346(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/BundleContextImpl.registerService(BundleContextImpl.java:320)
> 4XESTACKTRACE at
> org/apache/felix/inventory/impl/webconsole/WebConsoleAdapter.add(WebConsoleAdapter.java:125)
> 4XESTACKTRACE at
> org/apache/felix/inventory/impl/webconsole/WebConsoleAdapter.addingService(WebConsoleAdapter.java:155)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.trackAdding(AbstractTracked.java:256(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.track(AbstractTracked.java:229(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:793(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireServiceEvent(EventDispatcher.java:543(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireServiceEvent(Felix.java:4401(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.registerService(Felix.java:3411(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/BundleContextImpl.registerService(BundleContextImpl.java:346(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/BundleContextImpl.registerService(BundleContextImpl.java:320)
> 4XESTACKTRACE at
> de/xxx/yyy/modules/common/servlet/dispatcher/jsp/JspTldLocationsCache.<init>(JspTldLocationsCache.java:81)
> 4XESTACKTRACE at
> de/xxx/yyy/modules/common/servlet/dispatcher/jsp/engine/JspScriptEngineFactory.activate(JspScriptEngineFactory.java:235)
> 4XESTACKTRACE at
> de/xxx/yyy/modules/common/servlet/ContainerServlet.init(ContainerServlet.java:96)
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/handler/ServletHandler.init(ServletHandler.java:55)
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/handler/HandlerRegistry.addServlet(HandlerRegistry.java:65)
>
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/service/HttpServiceImpl.registerServlet(HttpServiceImpl.java:95)
> 4XESTACKTRACE at
> de/xxx/yyy/modules/common/osgi/webapp/WebappModuleServiceTracker.addingService(WebappModuleServiceTracker.java:82)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.trackAdding(AbstractTracked.java:256(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.track(AbstractTracked.java:229(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireEventImmediately(EventDispatcher.java:793(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/util/EventDispatcher.fireServiceEvent(EventDispatcher.java:543(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.fireServiceEvent(Felix.java:4401(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/Felix.registerService(Felix.java:3411(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/framework/BundleContextImpl.registerService(BundleContextImpl.java:346(Compiled
> Code))
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/HttpServiceController.register(HttpServiceController.java:135)
> 4XESTACKTRACE at
> org/apache/felix/http/base/internal/DispatcherServlet.init(DispatcherServlet.java:48)
> 4XESTACKTRACE at
> org/apache/felix/http/proxy/DispatcherTracker.initDispatcher(DispatcherTracker.java:97)
> 4XESTACKTRACE at
> org/apache/felix/http/proxy/DispatcherTracker.setDispatcher(DispatcherTracker.java:77)
> 4XESTACKTRACE at
> org/apache/felix/http/proxy/DispatcherTracker.addingService(DispatcherTracker.java:52)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.trackAdding(AbstractTracked.java:256(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/AbstractTracked.trackInitial(AbstractTracked.java:183(Compiled
> Code))
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker.open(ServiceTracker.java:317)
> 4XESTACKTRACE at
> org/osgi/util/tracker/ServiceTracker.open(ServiceTracker.java:261)
> 4XESTACKTRACE at
> org/apache/felix/http/proxy/ProxyServlet.doInit(ProxyServlet.java:51)
> 4XESTACKTRACE at
> org/apache/felix/http/proxy/ProxyServlet.init(ProxyServlet.java:39)
> 4XESTACKTRACE at
> org/apache/sling/launchpad/base/webapp/SlingServletDelegate.init(SlingServletDelegate.java:208)
> 4XESTACKTRACE at
> javax/servlet/GenericServlet.init(GenericServlet.java:241)
> 4XESTACKTRACE at
> org/apache/sling/launchpad/webapp/SlingServlet.startSling(SlingServlet.java:384)
> 4XESTACKTRACE at
> org/apache/sling/launchpad/webapp/SlingServlet.startSling(SlingServlet.java:325)
> 4XESTACKTRACE at
> org/apache/sling/launchpad/webapp/SlingServlet.init(SlingServlet.java:118)
> 4XESTACKTRACE at
> javax/servlet/GenericServlet.init(GenericServlet.java:241)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/servlet/ServletWrapper.init(ServletWrapper.java:363)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/servlet/ServletWrapperImpl.init(ServletWrapperImpl.java:171)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/servlet/ServletWrapper.initialize(ServletWrapper.java:1844)
> 4XESTACKTRACE at
> com/ibm/wsspi/webcontainer/extension/WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:98)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebApp.getServletWrapper(WebApp.java:1048(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebApp.getServletWrapper(WebApp.java:969)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebApp.initializeTargetMappings(WebApp.java:648(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebApp.commonInitializationFinally(WebApp.java:450)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebAppImpl.initialize(WebAppImpl.java:304(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/webapp/WebGroupImpl.addWebApplication(WebGroupImpl.java:100)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/VirtualHostImpl.addWebApplication(VirtualHostImpl.java:166)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/WSWebContainer.addWebApp(WSWebContainer.java:732)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/WSWebContainer.addWebApplication(WSWebContainer.java:617)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/component/WebContainerImpl.install(WebContainerImpl.java:376)
> 4XESTACKTRACE at
> com/ibm/ws/webcontainer/component/WebContainerImpl.start(WebContainerImpl.java:668)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/ApplicationMgrImpl.start(ApplicationMgrImpl.java:1128(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1319)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/DeployedModuleImpl.start(DeployedModuleImpl.java:611(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/DeployedApplicationImpl.start(DeployedApplicationImpl.java:944(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:741(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/ApplicationMgrImpl$3.run(ApplicationMgrImpl.java:2056)
> 4XESTACKTRACE at
> com/ibm/ws/security/auth/ContextManagerImpl.runAs(ContextManagerImpl.java:5395)
> 4XESTACKTRACE at
> com/ibm/ws/security/auth/ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5483)
> 4XESTACKTRACE at
> com/ibm/ws/security/core/SecurityContext.runAsSystem(SecurityContext.java:255)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/ApplicationMgrImpl.start(ApplicationMgrImpl.java:2061)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:389(Compiled
> Code))
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/CompositionUnitImpl.start(CompositionUnitImpl.java:123)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:332)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/CompositionUnitMgrImpl.access$300(CompositionUnitMgrImpl.java:117)
> 4XESTACKTRACE at
> com/ibm/ws/runtime/component/CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:899)
> 4XESTACKTRACE at
> com/ibm/wsspi/runtime/component/WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:496)
> 4XESTACKTRACE at
> com/ibm/ws/util/ThreadPool$Worker.run(ThreadPool.java:1656(Compiled Code))
> {code}
> We run into this quite often, so it's kind of reproducible. We have the same
> behaviour as well with other thread combinations (e.g. Sling Notifier and
> FelixFrameworkWiring) hitting the same locks.
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