[
https://issues.apache.org/jira/browse/FELIX-4670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173457#comment-14173457
]
David Bosschaert commented on FELIX-4670:
-----------------------------------------
[~cziegeler]
bq. I assume there is a clash if two servlets try to register for the same
path. The first one succeeds, the second one fails. If now the first one is
unregistered, is the second one registered?
The second one will receive an exception on registration. That should be enough
for the registering agent to know that it failed :) There's no automatic retry
in case the first one is removed. Or is that not what you meant?
> 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, felix_4670_alt.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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