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From "Hendy Irawan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARIES-955) EventDispatcher: Error during dispatch. java.lang.NullPointerException
Date Thu, 01 Nov 2012 08:31:17 GMT
Hendy Irawan created ARIES-955:
----------------------------------

             Summary: EventDispatcher: Error during dispatch. java.lang.NullPointerException
                 Key: ARIES-955
                 URL: https://issues.apache.org/jira/browse/ARIES-955
             Project: Aries
          Issue Type: Bug
          Components: Blueprint
    Affects Versions: blueprint-core-1.0.1
         Environment: Karaf
  Karaf version               2.3.0
  Karaf home                  /home/ceefour/git/bippo-commerce5/karaf
  Karaf base                  /home/ceefour/git/bippo-commerce5/karaf
  OSGi Framework              org.apache.felix.framework - 4.0.3

JVM
  Java Virtual Machine        OpenJDK 64-Bit Server VM version 23.2-b09
  Version                     1.7.0_07
  Vendor                      Oracle Corporation
  Uptime                      43 minutes
  Total compile time          46.669 seconds
Threads
  Live threads                211
  Daemon threads              196
  Peak                        212
  Total started               864
Memory
  Current heap size           134,351 kbytes
  Maximum heap size           466,048 kbytes
  Committed heap size         283,456 kbytes
  Pending objects             0
  Garbage collector           Name = 'PS Scavenge', Collections = 236, Time = 1.420 seconds
  Garbage collector           Name = 'PS MarkSweep', Collections = 4, Time = 0.754 seconds
Classes
  Current classes loaded      13,601
  Total classes loaded        17,342
  Total classes unloaded      3,741
Operating system
  Name                        Linux version 3.2.0-32-generic
  Architecture                amd64
  Processors                  8

            Reporter: Hendy Irawan


While attempting to write a extender (bundle tracker), I came across several NPEs.

{core}
ERROR: Bundle org.soluvas.security [2816] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.resolver.ResolverImpl.calculatePackageSpaces(ResolverImpl.java:533)
        at org.apache.felix.framework.resolver.ResolverImpl.calculatePackageSpaces(ResolverImpl.java:609)
        at org.apache.felix.framework.resolver.ResolverImpl.resolve(ResolverImpl.java:181)
        at org.apache.felix.framework.StatefulResolver.resolve(StatefulResolver.java:168)
        at org.apache.felix.framework.Felix.resolveBundles(Felix.java:3783)
        at org.apache.felix.framework.Felix.findBundleEntries(Felix.java:1622)
        at org.apache.felix.framework.BundleImpl.findEntries(BundleImpl.java:303)
        at org.soluvas.security.SecurityCatalogXmiTracker.addingBundle(SecurityCatalogXmiTracker.java:52)
        at org.soluvas.security.SecurityCatalogXmiTracker.addingBundle(SecurityCatalogXmiTracker.java:1)
        at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:467)
        at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:1)
        at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
        at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
        at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:443)
        at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:868)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:789)
        at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:514)
        at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4244)
        at org.apache.felix.framework.Felix.refreshBundle(Felix.java:4209)
        at org.apache.felix.framework.Felix.access$900(Felix.java:74)
        at org.apache.felix.framework.Felix$RefreshHelper.refreshOrRemove(Felix.java:4656)
        at org.apache.felix.framework.Felix.refreshPackages(Felix.java:3960)
        at org.apache.felix.framework.FrameworkWiringImpl.run(FrameworkWiringImpl.java:172)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.web.mall [2671] EventDispatcher: Error during dispatch.
(java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.web.mall [2671] EventDispatcher: Error during dispatch.
(java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.wink.rs [2728] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.web.mall [2671] EventDispatcher: Error during dispatch.
(java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
ERROR: Bundle id.co.bippo.product.rs [2727] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
        at org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl.isAssignableTo(ServiceRegistrationImpl.java:577)
        at org.apache.felix.framework.util.Util.isServiceAssignable(Util.java:280)
        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:916)
        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260)
        at org.apache.felix.framework.Felix.registerService(Felix.java:3275)
        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:421)
        at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:191)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:668)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:352)
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:252)
        at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
{core}

I'm not sure why... but a better message would be more helpful rather than simply NPE.


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