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Robert Varga commented on FELIX-6048: ------------------------------------- I do not have a ready reproducer yet, but we've hit this with 2.1.20: {noformat} Caused by: java.lang.IllegalStateException: Could not obtain lock at org.apache.felix.scr.impl.manager.AbstractComponentManager.obtainLock(AbstractComponentManager.java:241) ~[?:?] at org.apache.felix.scr.impl.manager.AbstractComponentManager.obtainStateLock(AbstractComponentManager.java:288) ~[?:?] at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:890) ~[?:?] at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse$1.run(ServiceFactoryUse.java:212) ~[?:?] at java.security.AccessController.doPrivileged(Native Method) ~[?:?] at org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryGetService(ServiceFactoryUse.java:210) ~[?:?]{noformat} Full log is here: [https://logs.opendaylight.org/releng/vex-yul-odl-jenkins-1/serviceutils-maven-merge-aluminium/170/features/odl-serviceutils-srm/target/SFT/karaf.log.gz] >From what I gather, it seems the component is being accessed via Service >Registry while its activate() method is still executing: {code:java} 2020-07-28T06:08:43,325 | INFO | features-3-thread-1 | OSGiActorSystemProvider | 138 - org.opendaylight.controller.sal-distributed-datastore - 2.0.3 | Actor System provider starting [...] 2020-07-28T06:08:52,435 | ERROR | Blueprint Extender: 1 | ServiceRecipe | 19 - org.apache.aries.blueprint.core - 1.10.2 | Error retrieving service from ServiceRecipe[name='.component-1'] org.osgi.service.blueprint.container.ComponentDefinitionException: Error when instantiating bean configDatastore of class org.opendaylight.controller.cluster.datastore.DistributedDataStoreFactory [...] Caused by: java.lang.IllegalStateException: getService() returned null for {org.opendaylight.controller.cluster.ActorSystemProvider}={service.id=1951, service.bundleid=138, service.scope=bundle, component.name=org.opendaylight.controller.cluster.akka.osgi.impl.OSGiActorSystemProvider, component.id=25} [...] 2020-07-28T06:08:58,971 | INFO | features-3-thread-1 | OSGiActorSystemProvider | 138 - org.opendaylight.controller.sal-distributed-datastore - 2.0.3 | Actor System provider started {code} > Could not obtain lock > --------------------- > > Key: FELIX-6048 > URL: https://issues.apache.org/jira/browse/FELIX-6048 > Project: Felix > Issue Type: Bug > Components: Declarative Services (SCR) > Affects Versions: scr-2.1.14 > Reporter: Alain Picard > Priority: Minor > Attachments: Felix no lock.png > > > I regularly get this exception when starting our app, w/o having ever seen > any impact. > > {code:java} > !ENTRY org.eclipse.equinox.cm 4 0 2019-02-02 14:31:46.715 > !MESSAGE Could not obtain lock > !STACK 0 > java.lang.IllegalStateException: Could not obtain lock > at > org.apache.felix.scr.impl.manager.AbstractComponentManager.obtainLock(AbstractComponentManager.java:231) > at > org.apache.felix.scr.impl.manager.AbstractComponentManager.obtainActivationWriteLock(AbstractComponentManager.java:266) > at > org.apache.felix.scr.impl.manager.SingleComponentManager.reconfigure(SingleComponentManager.java:633) > at > org.apache.felix.scr.impl.manager.SingleComponentManager.reconfigure(SingleComponentManager.java:609) > at > org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.configurationUpdated(ConfigurableComponentHolder.java:426) > at > org.apache.felix.scr.impl.manager.RegionConfigurationSupport.configurationEvent(RegionConfigurationSupport.java:284) > at > org.apache.felix.scr.impl.manager.RegionConfigurationSupport$1.configurationEvent(RegionConfigurationSupport.java:89) > at > org.eclipse.equinox.internal.cm.EventDispatcher$1.run(EventDispatcher.java:89) > at > org.eclipse.equinox.internal.cm.SerializedTaskQueue$1.run(SerializedTaskQueue.java:36) > After reporting on OSGI forum, was suggested to report here.{code} -- This message was sent by Atlassian Jira (v8.3.4#803005)