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Posted to dev@sling.apache.org by "Carsten Ziegeler (JIRA)" <ji...@apache.org> on 2008/02/01 09:33:08 UTC
[jira] Created: (SLING-216) NPE during unregistering servlets
NPE during unregistering servlets
----------------------------------
Key: SLING-216
URL: https://issues.apache.org/jira/browse/SLING-216
Project: Sling
Issue Type: Bug
Components: ServletResolver
Reporter: Carsten Ziegeler
Some NPE's occur during shutdown when the registered servlets are unregistered.
One problem is that the component context is set to null in deactivate before destroyAllServlets is invoked (the context is needed to destroy the servlet). Another problem could be that deactivate is called before the unbind method for the servlet?
This is the stack trace:
01.02.2008 09:26:28 *ERROR* o.a.s.s.resolver: [org.apache.sling.servlet.resolver.SlingServletResolver] DependencyManager : exception while invoking unbindServlet() (java.lang.NullPointerException)
java.lang.NullPointerException
at org.apache.sling.servlet.resolver.SlingServletResolver.destroyServlet(SlingServletResolver.java:576)
at org.apache.sling.servlet.resolver.SlingServletResolver.unbindServlet(SlingServletResolver.java:500)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.felix.scr.impl.DependencyManager.invokeUnbindMethod(DependencyManager.java:973)
at org.apache.felix.scr.impl.DependencyManager.unbind(DependencyManager.java:695)
at org.apache.felix.scr.impl.ImmediateComponentManager.disposeImplementationObject(ImmediateComponentManager.java:302)
at org.apache.felix.scr.impl.ImmediateComponentManager.deleteComponent(ImmediateComponentManager.java:151)
at org.apache.felix.scr.impl.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:469)
at org.apache.felix.scr.impl.AbstractComponentManager.disableInternal(AbstractComponentManager.java:486)
at org.apache.felix.scr.impl.AbstractComponentManager.disposeInternal(AbstractComponentManager.java:516)
at org.apache.felix.scr.impl.AbstractComponentManager.dispose(AbstractComponentManager.java:197)
at org.apache.felix.scr.impl.ImmediateComponentManager.dispose(ImmediateComponentManager.java:121)
at org.apache.felix.scr.impl.BundleComponentActivator.dispose(BundleComponentActivator.java:258)
at org.apache.felix.scr.impl.Activator.disposeComponents(Activator.java:251)
at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:177)
at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:690)
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:619)
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:532)
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:3568)
at org.apache.felix.framework.Felix._stopBundle(Felix.java:1955)
at org.apache.felix.framework.Felix.stopBundle(Felix.java:1920)
at org.apache.felix.framework.Felix._updateBundle(Felix.java:1757)
at org.apache.felix.framework.Felix.updateBundle(Felix.java:1719)
at org.apache.felix.framework.BundleImpl.update(BundleImpl.java:372)
at org.apache.sling.osgi.console.web.internal.core.InstallAction$2.doRun(InstallAction.java:242)
at org.apache.sling.osgi.console.web.internal.core.InstallAction$InstallHelper.run(InstallAction.java:278)
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[jira] Closed: (SLING-216) NPE during unregistering servlets
Posted by "Carsten Ziegeler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SLING-216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Carsten Ziegeler closed SLING-216.
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Resolution: Fixed
> NPE during unregistering servlets
> ----------------------------------
>
> Key: SLING-216
> URL: https://issues.apache.org/jira/browse/SLING-216
> Project: Sling
> Issue Type: Bug
> Components: ServletResolver
> Reporter: Carsten Ziegeler
>
> Some NPE's occur during shutdown when the registered servlets are unregistered.
> One problem is that the component context is set to null in deactivate before destroyAllServlets is invoked (the context is needed to destroy the servlet). Another problem could be that deactivate is called before the unbind method for the servlet?
> This is the stack trace:
> 01.02.2008 09:26:28 *ERROR* o.a.s.s.resolver: [org.apache.sling.servlet.resolver.SlingServletResolver] DependencyManager : exception while invoking unbindServlet() (java.lang.NullPointerException)
> java.lang.NullPointerException
> at org.apache.sling.servlet.resolver.SlingServletResolver.destroyServlet(SlingServletResolver.java:576)
> at org.apache.sling.servlet.resolver.SlingServletResolver.unbindServlet(SlingServletResolver.java:500)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.apache.felix.scr.impl.DependencyManager.invokeUnbindMethod(DependencyManager.java:973)
> at org.apache.felix.scr.impl.DependencyManager.unbind(DependencyManager.java:695)
> at org.apache.felix.scr.impl.ImmediateComponentManager.disposeImplementationObject(ImmediateComponentManager.java:302)
> at org.apache.felix.scr.impl.ImmediateComponentManager.deleteComponent(ImmediateComponentManager.java:151)
> at org.apache.felix.scr.impl.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:469)
> at org.apache.felix.scr.impl.AbstractComponentManager.disableInternal(AbstractComponentManager.java:486)
> at org.apache.felix.scr.impl.AbstractComponentManager.disposeInternal(AbstractComponentManager.java:516)
> at org.apache.felix.scr.impl.AbstractComponentManager.dispose(AbstractComponentManager.java:197)
> at org.apache.felix.scr.impl.ImmediateComponentManager.dispose(ImmediateComponentManager.java:121)
> at org.apache.felix.scr.impl.BundleComponentActivator.dispose(BundleComponentActivator.java:258)
> at org.apache.felix.scr.impl.Activator.disposeComponents(Activator.java:251)
> at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:177)
> at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:690)
> at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:619)
> at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:532)
> at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:3568)
> at org.apache.felix.framework.Felix._stopBundle(Felix.java:1955)
> at org.apache.felix.framework.Felix.stopBundle(Felix.java:1920)
> at org.apache.felix.framework.Felix._updateBundle(Felix.java:1757)
> at org.apache.felix.framework.Felix.updateBundle(Felix.java:1719)
> at org.apache.felix.framework.BundleImpl.update(BundleImpl.java:372)
> at org.apache.sling.osgi.console.web.internal.core.InstallAction$2.doRun(InstallAction.java:242)
> at org.apache.sling.osgi.console.web.internal.core.InstallAction$InstallHelper.run(InstallAction.java:278)
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