[jboss-jira] [JBoss JIRA] (JGRP-1482) NPE at org.jgroups.blocks.locking.Owner.equals(Owner.java:50)

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1482.
----------------------------

    Resolution: Done

    
> NPE at org.jgroups.blocks.locking.Owner.equals(Owner.java:50)
> -------------------------------------------------------------
>
>                 Key: JGRP-1482
>                 URL: https://issues.jboss.org/browse/JGRP-1482
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.12.1
>         Environment: CENTRAL_LOCK
>            Reporter: freeliuade freeliuade
>            Assignee: Bela Ban
>            Priority: Minor
>              Labels: CENTRAL_LOCK
>             Fix For: 3.0.11, 3.1
>
>
> a group has two nodes, lots of threads in the two nodes will compete locks (same lock name)
> it's a intermittent issue, only meet twice in 12 hours longivity test.
> below is the exception:
> 2012-05-17 01:41:20,232 ERROR [org.jgroups.protocols.UNICAST][Incoming-2,7fffffff-848a-e17f-7fff-ffffffd0d52f_domainservice,PEK-WKST1DBTB-7271] couldn't deliver message [dst: PEK-WKST1DBTB-7271, src: pek-wkstdkktk-44853 (3 headers), size=81 bytes, flags=DONT_BUNDLE]
> java.lang.NullPointerException
>          at org.jgroups.blocks.locking.Owner.equals(Owner.java:50)
>          at org.jgroups.protocols.Locking$ServerLock.handleRequest(Locking.java:689)
>          at org.jgroups.protocols.Locking.handleLockRequest(Locking.java:433)
>          at org.jgroups.protocols.Locking.up(Locking.java:231)
>          at org.jgroups.protocols.pbcast.STATE_TRANSFER.up(STATE_TRANSFER.java:150)
>          at org.jgroups.protocols.FRAG2.up(FRAG2.java:189)
>          at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)
>          at org.jgroups.protocols.FlowControl.up(FlowControl.java:400)
>          at org.jgroups.protocols.pbcast.GMS.up(GMS.java:891)
>          at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:246)
>          at org.jgroups.protocols.VIEW_SYNC.up(VIEW_SYNC.java:170)
>          at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:613)
>          at org.jgroups.protocols.UNICAST.up(UNICAST.java:294)
>          at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:703)
>          at org.jgroups.protocols.BARRIER.up(BARRIER.java:119)
>          at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:133)
>          at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:177)
>          at org.jgroups.protocols.FD.up(FD.java:275)
>          at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:275)
>          at org.jgroups.protocols.MERGE2.up(MERGE2.java:209)
>          at org.jgroups.protocols.Discovery.up(Discovery.java:293)
>          at org.jgroups.protocols.PING.up(PING.java:69)
>          at org.jgroups.protocols.MPING.up(MPING.java:176)
>          at org.jgroups.protocols.TP.passMessageUp(TP.java:1109)
>          at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1665)
>          at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1647)
>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>          at java.lang.Thread.run(Thread.java:662)

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