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

[Max Shaposhnyk (Jira)]

Max Shaposhnyk created JGRP-2423:
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             Summary: 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


The following NPE's are apperaing in the che.openshift.io production server logs causing the multiple threads to blocking and break down some fuctionality.

{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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