[JCR-1949] NullPointerException on DelegatingObservationDispatcher cause by parameter null on call : createEventStateCollection(null)

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.6
• Fix Version/s: 1.6
• Component/s: indexing, jackrabbit-core, versioning
• Assignee: Unassigned
• Reporter: Sandrine Raffalli
• Created: 22/Jan/09 10:42
• Updated: 13/Aug/09 15:03
• Resolved: 19/Feb/09 11:39

Description

There is a NullPointerException when jackrabbit try to synchronise its indexes :
22 janv. 2009 09:53:56 INFO [ClusterNode] - Processing revision: 4485
22 janv. 2009 09:53:56 ERROR [ClusterNode] - Unexpected error while syncing of journal: null
java.lang.NullPointerException
at org.apache.jackrabbit.core.observation.DelegatingObservationDispatcher.createEventStateCollection(DelegatingObservationDispatcher.java:80)
at org.apache.jackrabbit.core.version.VersionManagerImpl$DynamicESCFactory.createEventStateCollection(VersionManagerImpl.java:556)
at org.apache.jackrabbit.core.version.VersionManagerImpl.externalUpdate(VersionManagerImpl.java:500)
at org.apache.jackrabbit.core.cluster.ClusterNode.process(ClusterNode.java:853)
at org.apache.jackrabbit.core.cluster.ChangeLogRecord.process(ChangeLogRecord.java:457)
at org.apache.jackrabbit.core.cluster.ClusterNode.consume(ClusterNode.java:799)
at org.apache.jackrabbit.core.journal.AbstractJournal.doSync(AbstractJournal.java:213)
at org.apache.jackrabbit.core.journal.AbstractJournal.sync(AbstractJournal.java:188)
at org.apache.jackrabbit.core.cluster.ClusterNode.sync(ClusterNode.java:315)
at org.apache.jackrabbit.core.cluster.ClusterNode.run(ClusterNode.java:286)
at java.lang.Thread.run(Thread.java:595)

In fact the method createEventStateCollection() of DelegatingObservationDispatcher is called by the VersionManagerImpl with session parameter as null...

DelegatingObservationDispatcher:

public EventStateCollection createEventStateCollection(SessionImpl session,
Path pathPrefix) {
String userData = null;
try

{ userData = ((ObservationManagerImpl) session.getWorkspace().getObservationManager()).getUserData(); }

catch (RepositoryException e)

{ // should never happen because this // implementation supports observation }

return new EventStateCollection(this, session, pathPrefix, userData);
}

VersionManagerImpl$DynamicESCFactory :
public EventStateCollection createEventStateCollection(SessionImpl source)

{ return obsMgr.createEventStateCollection(source, VERSION_STORAGE_PATH); }

VersionManagerImpl :
public void externalUpdate(ChangeLog changes, List events,
long timestamp, String userData)
throws RepositoryException

{ EventStateCollection esc = getEscFactory().createEventStateCollection(null); esc.addAll(events); esc.setTimestamp(timestamp); esc.setUserData(userData); sharedStateMgr.externalUpdate(changes, esc); }

Issue Links

• is related to: JCR-1904 JSR 283: Event user data