[jboss-jira] [JBoss JIRA] (JGRP-1443) Null pointer exception testing proposed fix for JGRP-1426

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681027#comment-12681027 ] 

Bela Ban commented on JGRP-1443:
--------------------------------

The marshalling fix basically prevents the NPE, but we can end up with a view that's greater than the digest. Should investigate some day, but this is exactly the way it was before when we marshalled the view and digest separately. It was OK then, so I suppose it is OK now...
                
> Null pointer exception testing proposed fix for JGRP-1426
> ---------------------------------------------------------
>
>                 Key: JGRP-1443
>                 URL: https://issues.jboss.org/browse/JGRP-1443
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.0.8
>            Reporter: David Hotham
>            Assignee: Bela Ban
>             Fix For: 3.0.9, 3.1
>
>         Attachments: jgroups-3.0.9.Final.jar
>
>
> Per email exchange: testing a proposed fix for JGRP-1426, I hit the following exception:
> SEVERE: failed sending message to 10.239.0.5 (185 bytes):
> java.lang.NullPointerException, cause: null
> java.lang.NullPointerException
>         at org.jgroups.protocols.pbcast.JoinRsp.writeTo(JoinRsp.java:90)
>         at org.jgroups.util.Util.writeStreamable(Util.java:934)
>         at org.jgroups.protocols.pbcast.GMS$GmsHeader.writeTo(GMS.java:1155)
>         at org.jgroups.Message.writeHeader(Message.java:891)
>         at org.jgroups.Message.writeTo(Message.java:698)
>         at org.jgroups.protocols.TP.writeMessage(TP.java:1367)
>         at org.jgroups.protocols.TP.send(TP.java:1279)
>         at org.jgroups.protocols.TP.down(TP.java:1138)
>         at org.jgroups.protocols.Discovery.down(Discovery.java:573)
>         at org.jgroups.protocols.TCPPING.down(TCPPING.java:108)
>         at org.jgroups.protocols.MERGE3.down(MERGE3.java:242)
>         at org.jgroups.protocols.FD.down(FD.java:308)
>         at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:80)
>         at org.jgroups.protocols.pbcast.NAKACK2.down(NAKACK2.java:493)
>         at org.jgroups.protocols.UNICAST2.down(UNICAST2.java:502)
>         at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:328)
>         at org.jgroups.protocols.pbcast.GMS.sendJoinResponse(GMS.java:543)
>         at org.jgroups.protocols.pbcast.CoordGmsImpl.handleMembershipChange(CoordGmsImpl.java:156)
>         at org.jgroups.protocols.pbcast.GMS$ViewHandler.process(GMS.java:1390)
>         at org.jgroups.protocols.pbcast.GMS$ViewHandler.run(GMS.java:1344)
>         at java.lang.Thread.run(Thread.java:662)
> You said: 
> {quote}
> ah, ok, this is a change I made recently, to reduce the size of digests.
> Can you open a JIRA so we can track this ?
> I'll fix it this week.
> {quote}
> ... so here we are.
> Thanks!
> David

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