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Posted to dev@felix.apache.org by "christian (JIRA)" <ji...@apache.org> on 2010/06/22 18:18:54 UTC

[jira] Created: (FELIX-2437) Deadlock on refrsh Import and refresh

Deadlock on refrsh Import and refresh
-------------------------------------

                 Key: FELIX-2437
                 URL: https://issues.apache.org/jira/browse/FELIX-2437
             Project: Felix
          Issue Type: Bug
          Components: Configuration Admin
    Affects Versions: webconsole-3.0.0, framework-2.0.4
         Environment: Felix framework 2.0.4
Felix webconsole 3.0.0
Sling 
            Reporter: christian
            Priority: Minor


I encountred a Deadlock using Webconsole (s. stacktrace below)

Stepps to reproduce:

1) in webconsole navigate to "bundles"
2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
3) click "refresh package import"
4) click "refresh"

It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 




Found one Java-level deadlock:
=============================
"0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
  waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
  which is held by "FelixPackageAdmin"
"FelixPackageAdmin":
  waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
  which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"

Java stack information for the threads listed above:
===================================================
"0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
        at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
        - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
        at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
        at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
        - locked <0x06235658> (a [Ljava.lang.Object;)
        at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
        at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
        at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
        at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
        at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
        at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
        at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
        at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
        at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
        at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
        at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
        at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
        at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
        at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
        at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
        at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
        at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
        at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
        at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
        at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
        at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
        at java.lang.Thread.run(Thread.java:595)
"FelixPackageAdmin":
        at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
        - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
        at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
        at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
        - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
        at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
        at org.apache.felix.framework.Felix.access$900(Felix.java:39)
        at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
        at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
        at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
        at java.lang.Thread.run(Thread.java:595)

Found 1 deadlock.

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[jira] Assigned: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richard S. Hall reassigned FELIX-2437:
--------------------------------------

    Assignee: Richard S. Hall

> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Assignee: Richard S. Hall
>            Priority: Minor
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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[jira] Commented: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.

    [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12883590#action_12883590 ] 

Richard S. Hall commented on FELIX-2437:
----------------------------------------

Just a note to myself: I think we need to make sure that any invocation paths that touch the install locks and the global lock always grab the global lock first to avoid such locking cycles.

> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-3.2.0
>
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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[jira] Updated: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richard S. Hall updated FELIX-2437:
-----------------------------------

    Fix Version/s: framework-3.2.0

> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-3.2.0
>
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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[jira] Resolved: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richard S. Hall resolved FELIX-2437.
------------------------------------

    Resolution: Fixed

I've attempted to resolve this issue. It did avoid the deadlock in my scenario. I modified concurrency handling of the installed bundle data structures. Now they are guarded by the global lock for writes instead of the fine-grained install locks to avoid locking cycles, but with a copy-on-write approach so reads do not need to acquire a lock. I ran through CT and various tests and everything appeared to work.

I will post snapshots of everything, including a framework distro, so if you could check in your own scenario, that would be great. Please close this issue if satisfied, thanks.


> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-3.2.0
>
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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[jira] Updated: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Karl Pauls (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Karl Pauls updated FELIX-2437:
------------------------------

    Fix Version/s: framework-3.0.2
                       (was: framework-3.2.0)

> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-3.0.2
>
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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[jira] Commented: (FELIX-2437) Deadlock on refrsh Import and refresh

Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.

    [ https://issues.apache.org/jira/browse/FELIX-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12881852#action_12881852 ] 

Richard S. Hall commented on FELIX-2437:
----------------------------------------

I have reproduced this issue and will look into a fix.

> Deadlock on refrsh Import and refresh
> -------------------------------------
>
>                 Key: FELIX-2437
>                 URL: https://issues.apache.org/jira/browse/FELIX-2437
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: framework-2.0.4, webconsole-3.0.0
>         Environment: Felix framework 2.0.4
> Felix webconsole 3.0.0
> Sling 
>            Reporter: christian
>            Priority: Minor
>
> I encountred a Deadlock using Webconsole (s. stacktrace below)
> Stepps to reproduce:
> 1) in webconsole navigate to "bundles"
> 2) select and open the detail view of a bundle that has a lot dependencies (I used sling and as bundle the sling api bundle)
> 3) click "refresh package import"
> 4) click "refresh"
> It the request from 4) is processed while he one from 3) is still running, you get a deadlock. 
> Found one Java-level deadlock:
> =============================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>   waiting to lock monitor 0x0039de94 (object 0x06448fd0, a org.apache.felix.framework.BundleImpl),
>   which is held by "FelixPackageAdmin"
> "FelixPackageAdmin":
>   waiting to lock monitor 0x0039deb4 (object 0x06235658, a [Ljava.lang.Object;),
>   which is held by "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1"
> Java stack information for the threads listed above:
> ===================================================
> "0:0:0:0:0:0:0:1 [1277221470284] GET /system/console/bundles/105 HTTP/1.1":
>         at org.apache.felix.framework.BundleImpl.getModules(BundleImpl.java:1001)
>         - waiting to lock <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3114)
>         at org.apache.felix.framework.Felix.getExportedPackages(Felix.java:3093)
>         - locked <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.PackageAdminImpl.getExportedPackages(PackageAdminImpl.java:184)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.listImportExport(BundlesServlet.java:834)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleDetails(BundlesServlet.java:752)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.bundleInfo(BundlesServlet.java:675)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:570)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.writeJSON(BundlesServlet.java:511)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.renderContent(BundlesServlet.java:485)
>         at org.apache.felix.webconsole.AbstractWebConsolePlugin.doGet(AbstractWebConsolePlugin.java:148)
>         at org.apache.felix.webconsole.internal.core.BundlesServlet.doGet(BundlesServlet.java:274)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:367)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:93)
>         at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:79)
>         at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
>         at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
>         at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
>         at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
>         at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
>         at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:67)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.felix.http.proxy.ProxyServlet.service(ProxyServlet.java:60)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>         at org.apache.sling.launchpad.base.webapp.SlingServletDelegate.service(SlingServletDelegate.java:275)
>         at org.apache.sling.launchpad.webapp.SlingServlet.service(SlingServlet.java:130)
>         at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
>         at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:96)
>         at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
>         at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
>         at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
>         at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
>         at java.lang.Thread.run(Thread.java:595)
> "FelixPackageAdmin":
>         at org.apache.felix.framework.Felix.getBundles(Felix.java:2594)
>         - waiting to lock <0x06235658> (a [Ljava.lang.Object;)
>         at org.apache.felix.framework.BundleImpl.createModule(BundleImpl.java:1140)
>         at org.apache.felix.framework.BundleImpl.refresh(BundleImpl.java:170)
>         - locked <0x06448fd0> (a org.apache.felix.framework.BundleImpl)
>         at org.apache.felix.framework.Felix.refreshBundle(Felix.java:3574)
>         at org.apache.felix.framework.Felix.access$900(Felix.java:39)
>         at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4257)
>         at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3438)
>         at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:331)
>         at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.

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