[jboss-jira] [JBoss JIRA] (JGRP-2423) NPE during unlock operation

[Max Shaposhnyk (Jira)]

     [ https://issues.redhat.com/browse/JGRP-2423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Max Shaposhnyk updated JGRP-2423:
---------------------------------
    Description: 
The following NPE's are appearing in the che.openshift.io production server logs causing the multiple threads to blocking and break down some fuctionality.
ATM we're unable to clearly reproduce issue on local installations (it happens very rarely on local, but quite frequently on prod server)

{noformat}
java.lang.NullPointerException: null
	at org.jgroups.util.Owner.compareTo(Owner.java:59)
	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:1142)
	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:942)
	at java.util.concurrent.ConcurrentSkipListMap.cpr(ConcurrentSkipListMap.java:655)
	at java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:835)
	at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1979)
	at java.util.concurrent.ConcurrentSkipListSet.add(ConcurrentSkipListSet.java:241)
	at org.jgroups.protocols.Locking$ClientLockTable.addToPendingReleaseRequest
{noformat}

additional links:

[1] https://github.com/eclipse/che/issues/15231
[2] https://issues.redhat.com/browse/JGRP-2299
[3] https://issues.redhat.com/browse/JGRP-2364
[4] https://github.com/eclipse/che/blob/master/assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/jgroups/che-tcp.xml




  was:
The following NPE's are appearing in the che.openshift.io production server logs causing the multiple threads to blocking and break down some fuctionality.
ATM we're unable to clearly reproduce ussie on local installations (it happens very rarely on local, but quite frequently on prod server)

{noformat}
java.lang.NullPointerException: null
	at org.jgroups.util.Owner.compareTo(Owner.java:59)
	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:1142)
	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:942)
	at java.util.concurrent.ConcurrentSkipListMap.cpr(ConcurrentSkipListMap.java:655)
	at java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:835)
	at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1979)
	at java.util.concurrent.ConcurrentSkipListSet.add(ConcurrentSkipListSet.java:241)
	at org.jgroups.protocols.Locking$ClientLockTable.addToPendingReleaseRequest
{noformat}

additional links:

[1] https://github.com/eclipse/che/issues/15231
[2] https://issues.redhat.com/browse/JGRP-2299
[3] https://issues.redhat.com/browse/JGRP-2364
[4] https://github.com/eclipse/che/blob/master/assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/jgroups/che-tcp.xml






> NPE during unlock operation
> ---------------------------
>
>                 Key: JGRP-2423
>                 URL: https://issues.redhat.com/browse/JGRP-2423
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 4.1.8
>            Reporter: Max Shaposhnyk
>            Assignee: Bela Ban
>            Priority: Major
>
> The following NPE's are appearing in the che.openshift.io production server logs causing the multiple threads to blocking and break down some fuctionality.
> ATM we're unable to clearly reproduce issue on local installations (it happens very rarely on local, but quite frequently on prod server)
> {noformat}
> java.lang.NullPointerException: null
> 	at org.jgroups.util.Owner.compareTo(Owner.java:59)
> 	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:1142)
> 	at org.jgroups.protocols.Locking$ClientLock.compareTo(Locking.java:942)
> 	at java.util.concurrent.ConcurrentSkipListMap.cpr(ConcurrentSkipListMap.java:655)
> 	at java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:835)
> 	at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1979)
> 	at java.util.concurrent.ConcurrentSkipListSet.add(ConcurrentSkipListSet.java:241)
> 	at org.jgroups.protocols.Locking$ClientLockTable.addToPendingReleaseRequest
> {noformat}
> additional links:
> [1] https://github.com/eclipse/che/issues/15231
> [2] https://issues.redhat.com/browse/JGRP-2299
> [3] https://issues.redhat.com/browse/JGRP-2364
> [4] https://github.com/eclipse/che/blob/master/assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/jgroups/che-tcp.xml



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