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https://issues.apache.org/jira/browse/RIVER-23?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Trasuk updated RIVER-23:
-----------------------------
Fix Version/s: (was: River_2.2.1)
Not addressed in 2.2.1
> Closing down a LookupDiscovery instance resulted in NPE
> -------------------------------------------------------
>
> Key: RIVER-23
> URL: https://issues.apache.org/jira/browse/RIVER-23
> Project: River
> Issue Type: Bug
> Components: net_jini_discovery
> Affects Versions: jtsk_2.1
> Reporter: Mark Brouwer
> Priority: Minor
>
> Shutting down a Seven instance resulted in the following NPE.
> {noformat:nopanel}
> INFO: JSC Service with ID 1.3.6.1.4.12543.2.4.0_lookup is being destroyed,
> container managed resources will be released
> 05-Jan-2007 18:21:51 org.cheiron.util.thread.ThreadPoolImpl$WorkerThread run
> WARNING: unexpected exception while running user task
> java.lang.NullPointerException
> at
> net.jini.discovery.LookupDiscovery$AnnouncementInfo.access$2702(LookupDiscovery.java:3222)
> at
> net.jini.discovery.LookupDiscovery$DecodeAnnouncementTask.run(LookupDiscovery.java:1392)
> at
> net.jini.discovery.LookupDiscovery$PacketListenerImpl.deliverAnnouncement(LookupDiscovery.java:1162)
> at
> com.sun.jini.discovery.AnnouncementDelivery$ALWrapper$ALTaskManagerDeliveryTask.run(AnnouncementDelivery.java:705)
> at
> org.cheiron.util.thread.VirtualTaskManager$ShareableTask.run(VirtualTaskManager.java:416)
> at
> org.cheiron.util.thread.ThreadPoolImpl$ContextTask$1.run(ThreadPoolImpl.java:1527)
> at
> org.cheiron.seven.security.ContextSecurityManager$4.run(ContextSecurityManager.java:410)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.cheiron.util.thread.ThreadPoolImpl$ContextTask.run(ThreadPoolImpl.java:1522)
> at
> org.cheiron.util.thread.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:2657)
> {noformat}
> Note that the line numbers are different from the ones in the latest public
> release of the JTSK, this is due to modifications made by both Sun and the
> Cheiron project. But the code responsible for the NPE can be found in the
> current codebase as well:
> {noformat:nopanel}
> if (pending instanceof CheckGroupsMarker) {
> synchronized(registrars) {
> // Since this is a valid announcement, update the
> // sequence number.
> AnnouncementInfo aInfo =
> (AnnouncementInfo) regInfo.get(srvcID);
> aInfo.seqNum = ann.getSequenceNumber();
> }
> }
> {noformat}
> Apparently it is possible a lookup service is removed from the map for
> ServiceID to multicast announcements while an announce packet is still queued
> for being analyzed.
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