Hi, Bertrand Delacretaz schrieb: > Hi, > > In some cases, jcrinstall needs to uninstall bundles right after its > activate() method is called, for example when finding out that a > bundle that it installed is gone from the repository.
Whose "activate()" method ? Do you mean, right after starting a bundle, it should immediately be uninstalled again ? > > In testing on a system with about 50 bundles, with jcrinstall > uninstalling all of them (which is wrong, but showed the problem ;-) I > got the stack trace shown below at least once. > > IIUC there's a conflict between the Felix SCR Component Actor trying > to do stuff with bundles, and jcrinstall doing the same. Actually the "conflict" is between the components being started and the bundle being stopped at the same time. This is a seldom but possible situation in any life OSGi system. > > Is there a clean way of handling this problem, does the OSGi framework > provide a locking mechanism when dealing with install/uninstall calls? There might be two cases: If you remove the bundle immediately after activating it, I would try to delay such removals. If you try to remove the bundle, during the activating of the JCRInstall bundle (or immediately after that), you might in the system startup situation. In this case, I suggest you do the following: Register a FrameworkListener and only consider installation tasks after the FrameworkEvent.STARTED event has been received. You can find out, whether the framework is starting up (and a FrameworkListener is needed) by checking the state of the system bundle (bundle 0): The system bundle only changes its state to started if the framework has completed startup. Hope this helps. Regards Felix > > -Bertrand > > > Stack trace: > > 16.09.2008 15:59:37.321 *ERROR* [RepositoryObserver_1221573551897] > org.apache.sling.i18n > [org.apache.sling.i18n.impl.JcrResourceBundleProvider] > BundleComponentActivator : Exception invalidating > (java.lang.IllegalStateException: Cannot get Service Registration, > owned by Thread[SCR Component Actor,5,main]) > java.lang.IllegalStateException: Cannot get Service Registration, > owned by Thread[SCR Component Actor,5,main] > at > org.apache.felix.scr.impl.AbstractComponentManager.lockServiceRegistration(AbstractComponentManager.java:782) > at > org.apache.felix.scr.impl.AbstractComponentManager.unregisterComponentService(AbstractComponentManager.java:709) > at > org.apache.felix.scr.impl.AbstractComponentManager.deactivateInternal(AbstractComponentManager.java:549) > at > org.apache.felix.scr.impl.AbstractComponentManager.disableInternal(AbstractComponentManager.java:579) > at > org.apache.felix.scr.impl.AbstractComponentManager.disposeInternal(AbstractComponentManager.java:616) > at > org.apache.felix.scr.impl.AbstractComponentManager.dispose(AbstractComponentManager.java:272) > at > org.apache.felix.scr.impl.ImmediateComponentManager.dispose(ImmediateComponentManager.java:120) > at > org.apache.felix.scr.impl.BundleComponentActivator.dispose(BundleComponentActivator.java:258) > at > org.apache.felix.scr.impl.Activator.disposeComponents(Activator.java:264) > 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:3601) > at org.apache.felix.framework.Felix._stopBundle(Felix.java:1989) > at org.apache.felix.framework.Felix.stopBundle(Felix.java:1954) > at org.apache.felix.framework.Felix._uninstallBundle(Felix.java:2108) > at org.apache.felix.framework.Felix.uninstallBundle(Felix.java:2078) > at > org.apache.felix.framework.BundleImpl.uninstall(BundleImpl.java:415) > at > org.apache.sling.jcr.jcrinstall.osgi.impl.BundleResourceProcessor.uninstall(BundleResourceProcessor.java:108) > at > org.apache.sling.jcr.jcrinstall.osgi.impl.OsgiControllerImpl.uninstall(OsgiControllerImpl.java:128) > at > org.apache.sling.jcr.jcrinstall.jcr.impl.RepositoryObserver.handleInitialUninstalls(RepositoryObserver.java:253) > at > org.apache.sling.jcr.jcrinstall.jcr.impl.RepositoryObserver.run(RepositoryObserver.java:281 >
