[jboss-jira] [JBoss JIRA] Created: (JBMESSAGING-1244) GroupMember passes null to Channel.connect()

[Brian Stansberry (JIRA)]

GroupMember passes null to Channel.connect()
--------------------------------------------

                 Key: JBMESSAGING-1244
                 URL: http://jira.jboss.com/jira/browse/JBMESSAGING-1244
             Project: JBoss Messaging
          Issue Type: Bug
          Components: Messaging Core
    Affects Versions: 1.4.1.beta1
            Reporter: Brian Stansberry
         Assigned To: Tim Fox


When GroupMember connects a JGroups Channel, it passes null to Channel.connect(String).  It needs to pass the same value that it passes as the "id" param to ChannelFactory.createMultiplexerChannel(String stack_name, String id, boolean register_for_state_transfer, String substate_id), i.e.
${jboss.partition.name:DefaultPartition}-JMS-CTRL and ${jboss.partition.name:DefaultPartition}-JMS-DATA

Passing null has worked solely due to an internal quirk in JGroups' MuxChannel implementation of the Channel interface.  If JGroups internally provides a shared transport JChannel instead of a MuxChannel, it will fail:

2008-02-28 17:43:06,098 ERROR [org.jboss.messaging.util.ExceptionUtil] org.jboss.messaging.core.jmx.MessagingPostOfficeService at 1a0d916 startService
org.jgroups.ChannelException: failed to start protocol stack
	at org.jgroups.JChannel.startStack(JChannel.java:1440)
	at org.jgroups.JChannel.connect(JChannel.java:362)
	at org.jboss.messaging.core.impl.postoffice.GroupMember.start(GroupMember.java:142)
	at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice.start(MessagingPostOffice.java:347)
	at org.jboss.messaging.core.jmx.MessagingPostOfficeService.startService(MessagingPostOfficeService.java:427)
        ....
Caused by: java.lang.NullPointerException
	at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:157)
	at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:745)
	at java.util.concurrent.ConcurrentHashMap$KeySet.contains(ConcurrentHashMap.java:1215)
	at org.jgroups.stack.Configurator.startProtocolStack(Configurator.java:85)
	at org.jgroups.stack.ProtocolStack.startStack(ProtocolStack.java:341)
	at org.jgroups.JChannel.startStack(JChannel.java:1437)
	... 59 more

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