[jboss-jira] [JBoss JIRA] (JGRP-1465) [org.jgroups.protocols.TCP] failed sending message to NJ-WKST-2CF6D2X-62641 (91 bytes): java.lang.NullPointerException, cause: null

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1465.
----------------------------

    Resolution: Done

    
> [org.jgroups.protocols.TCP] failed sending message to NJ-WKST-2CF6D2X-62641 (91 bytes): java.lang.NullPointerException, cause: null
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JGRP-1465
>                 URL: https://issues.jboss.org/browse/JGRP-1465
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.0.10
>         Environment: TCP + MPING
>            Reporter: freeliuade freeliuade
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 3.0.11, 3.1
>
>
> using TCP + MPING, on connect a channel, throws following error:
> ------------
> 2012-05-16 12:20:16,604 ERROR [org.jgroups.protocols.TCP] failed sending message to NJ-WKST-2CF6D2X-62641 (91 bytes): java.lang.NullPointerException, cause: null
> ------------
> using debug to get the exception detail as below:
> 2012-05-16 16:05:39,690 ERROR [STDERR] java.lang.NullPointerException
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.TCP.send(TCP.java:56)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.BasicTCP.sendUnicast(BasicTCP.java:95)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.TP.sendToSingleMember(TP.java:1214)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.TP.doSend(TP.java:1198)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.TP.send(TP.java:1184)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.TP.down(TP.java:1041)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.Discovery.sendDiscoveryResponse(Discovery.java:512)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.Discovery.up(Discovery.java:347)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.PING.up(PING.java:69)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.MPING.up(MPING.java:176)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at org.jgroups.protocols.MPING.run(MPING.java:327)
> 2012-05-16 16:05:39,690 ERROR [STDERR] 	at java.lang.Thread.run(Thread.java:662)
> and it should caused by MPING received a message, but the jchannel initialize doesn't done at this time. (TCPConnectionMap(ct) doesn't initialized in TCP). 
> I guess this error should be harmless, but I think MPING should receive message after jchannel initialze done. 

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