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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