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  1. Sling
  2. SLING-2773

NPE in JcrResourceListener on missing user id

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • JCR Resource 2.2.4
    • JCR Resource 2.2.6
    • JCR
    • None

    Description

      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

      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)

      Attachments

        Issue Links

          blocks

          Wish - General wishlist item. SLING-2788 Optionally run Sling on Apache OAK

          • Major - Major loss of function.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. OAK-675 Observation generates NPE in an existing EventListener

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SLING-3339 avoid Oak warning about external events

          • Major - Major loss of function.
          • Closed

          Activity

            People

              cziegeler Carsten Ziegeler
              stillalex Alex Deparvu
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              Dates

                Created:
                Updated:
                Resolved: