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https://issues.apache.org/jira/browse/SLING-530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644997#action_12644997
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Felix Meschberger commented on SLING-530:
-----------------------------------------
As the log message says: "Just logging". This is not a problem, since it
occurrs only on system shutdown, when the Equinox ServletContainer bridge has
already disposed off the actual servlet context from the servlet container and
cannot access the attributes any more.
Will lower the logging level though and rework the log message to indicate,
that this is an expected behaviour on shutdown.
> JspScriptEngineFactory throws NullPointerException on deactivate
> ----------------------------------------------------------------
>
> Key: SLING-530
> URL: https://issues.apache.org/jira/browse/SLING-530
> Project: Sling
> Issue Type: Bug
> Components: Scripting JSP
> Affects Versions: Scripting JSP 2.0.2
> Environment: Darwin 9.3.0 Darwin Kernel Version 9.3.0: Fri May 23
> 00:49:16 PDT 2008; root:xnu-1228.5.18~1/RELEASE_I386 i386
> Reporter: Dominique Jäggi
> Assignee: Felix Meschberger
> Priority: Minor
>
> Upon shutting down Sling, the following exception is thrown:
> 13.06.2008 09:32:17.491 *ERROR* [main]
> org.apache.sling.scripting.jsp.JspScriptEngineFactory deactivate: Caught
> NullPointerException ! Just logging java.lang.NullPointerException
> at
> org.eclipse.equinox.http.servlet.internal.ServletContextAdaptor.removeAttribute(ServletContextAdaptor.java:75)
> at
> org.apache.sling.engine.impl.helper.SlingServletContext.removeAttribute(SlingServletContext.java:204)
> at
> org.apache.sling.scripting.jsp.JspScriptEngineFactory.deactivate(JspScriptEngineFactory.java:244)
> 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.ImmediateComponentManager.disposeImplementationObject(ImmediateComponentManager.java:269)
> at
> org.apache.felix.scr.impl.ImmediateComponentManager.deleteComponent(ImmediateComponentManager.java:150)
> at
> org.apache.felix.scr.impl.DelayedComponentManager.deleteComponent(DelayedComponentManager.java:61)
> at
> org.apache.felix.scr.impl.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:549)
> at
> org.apache.felix.scr.impl.AbstractComponentManager.deactivate(AbstractComponentManager.java:233)
> at
> org.apache.felix.scr.impl.DependencyManager.serviceRemoved(DependencyManager.java:242)
> at
> org.apache.felix.scr.impl.DependencyManager.serviceChanged(DependencyManager.java:124)
> at
> org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:765)
> at
> org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:623)
> at
> org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:554)
> at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:3612)
> at org.apache.felix.framework.Felix.access$000(Felix.java:36)
> at org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:626)
> at
> org.apache.felix.framework.ServiceRegistry.fireServiceChanged(ServiceRegistry.java:559)
> at
> org.apache.felix.framework.ServiceRegistry.unregisterService(ServiceRegistry.java:96)
> at
> org.apache.felix.framework.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:112)
> at
> org.apache.sling.engine.impl.helper.SlingServletContext.dispose(SlingServletContext.java:101)
> at
> org.apache.sling.engine.impl.SlingMainServlet.deactivate(SlingMainServlet.java:629)
> 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.ImmediateComponentManager.disposeImplementationObject(ImmediateComponentManager.java:269)
> at
> org.apache.felix.scr.impl.ImmediateComponentManager.deleteComponent(ImmediateComponentManager.java:150)
> at
> org.apache.felix.scr.impl.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:549)
> at
> org.apache.felix.scr.impl.AbstractComponentManager.deactivate(AbstractComponentManager.java:233)
> at
> org.apache.felix.scr.impl.DependencyManager.serviceRemoved(DependencyManager.java:242)
> at
> org.apache.felix.scr.impl.DependencyManager.serviceChanged(DependencyManager.java:124)
> at
> org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:765)
> at
> org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:623)
> at
> org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:554)
> at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:3612)
> at org.apache.felix.framework.Felix.access$000(Felix.java:36)
> at org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:626)
> at
> org.apache.felix.framework.ServiceRegistry.fireServiceChanged(ServiceRegistry.java:559)
> at
> org.apache.felix.framework.ServiceRegistry.unregisterService(ServiceRegistry.java:96)
> at
> org.apache.felix.framework.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:112)
> at
> org.eclipse.equinox.http.servlet.internal.Activator.removeProxyServlet(Activator.java:84)
> at
> org.eclipse.equinox.http.servlet.internal.ProxyServlet.destroy(ProxyServlet.java:43)
> at
> org.apache.sling.launcher.webapp.SlingServlet.destroy(SlingServlet.java:210)
> (...)
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