Alex Parvulescu created SLING-2773:
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Summary: NPE in sling EventListener on missing user id
Key: SLING-2773
URL: https://issues.apache.org/jira/browse/SLING-2773
Project: Sling
Issue Type: Bug
Components: ResourceResolver
Reporter: Alex Parvulescu
The Oak repository impl doesn't yet provide user id information on events which
makes for a NPE on the sling side (See OAK-675).
Providing null as user id is considered legal , so probably a null guard is in
order [0].
[0]
http://svn.apache.org/viewvc/sling/trunk/bundles/jcr/resource/src/main/java/org/apache/sling/jcr/resource/internal/JcrResourceListener.java?view=markup#l298
{code}
06.03.2013 11:33:13.866 *ERROR* [pool-4-thread-1]
org.apache.jackrabbit.oak.plugins.observation.ChangeProcessor Unable to
generate or send events java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:394)
at
org.apache.sling.jcr.resource.internal.JcrResourceListener.sendOsgiEvent(JcrResourceListener.java:298)
at
org.apache.sling.jcr.resource.internal.JcrResourceListener.onEvent(JcrResourceListener.java:218)
at
org.apache.jackrabbit.oak.plugins.observation.ChangeProcessor$EventGeneratingNodeStateDiff.sendEvents(ChangeProcessor.java:154)
at
org.apache.jackrabbit.oak.plugins.observation.ChangeProcessor.run(ChangeProcessor.java:117)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{code}
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