[jboss-jira] [JBoss JIRA] (JGRP-2088) ArrayIndexOutOfBoundsException on ClassConfigurator.get()

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-2088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263806#comment-13263806 ] 

Bela Ban commented on JGRP-2088:
--------------------------------

Try configuring AUTH and SYM_ENCRYPT according to the config listed in [1].
Also note that NAKACK is deprecated.

[1] https://github.com/belaban/JGroups/blob/3.6/conf/sym-encrypt.xml

> ArrayIndexOutOfBoundsException on ClassConfigurator.get()
> ---------------------------------------------------------
>
>                 Key: JGRP-2088
>                 URL: https://issues.jboss.org/browse/JGRP-2088
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.6.10
>            Reporter: Manuel Dominguez Sarmiento
>            Assignee: Bela Ban
>             Fix For: 3.6.11, 4.0
>
>         Attachments: jgroups.xml
>
>
> See the following stack trace:
> [ERROR] 2016-07-09 14:26:05 [UDP-multicast receiver,shared=jgroups-shared-transport] - JGRP000030: null: failed handling incoming message: java.lang.ArrayIndexOutOfBoundsException: -1
> java.lang.ArrayIndexOutOfBoundsException: -1
> 	at org.jgroups.conf.ClassConfigurator.get(ClassConfigurator.java:161)
> 	at org.jgroups.Message.readHeader(Message.java:936)
> 	at org.jgroups.Message.readFrom(Message.java:811)
> 	at org.jgroups.protocols.TP.handleSingleMessage(TP.java:1712)
> 	at org.jgroups.protocols.TP.receive(TP.java:1654)
> 	at org.jgroups.protocols.UDP$PacketReceiver.run(UDP.java:701)
> 	at java.lang.Thread.run(Thread.java:745)
> Stepping through the code with the debugger shows that the following line is failing at ClassConfigurator.get() with magic = -1 thus the java.lang.ArrayIndexOutOfBoundsException
> return magic < 1024 ? magicMap[magic] : (Class)magicMapUser.get(Short.valueOf(magic));
> See attached jgroups.xml for configuration. This showed up when upgrading to 3.6.10 from 3.6.8 which worked fine.



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