[jboss-jira] [JBoss JIRA] (JGRP-2359) Route list can be empty

[Pedro Ruivo (Jira)]

Pedro Ruivo created JGRP-2359:
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             Summary: Route list can be empty
                 Key: JGRP-2359
                 URL: https://issues.jboss.org/browse/JGRP-2359
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 4.0.20, 4.1.1
            Reporter: Pedro Ruivo
            Assignee: Bela Ban


The list of routes is changed without proper synchronization. One example, I got an empty list when in Infinispan when try to select the route to use:

{code}
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:657)
	at java.util.ArrayList.get(ArrayList.java:433)
	at org.infinispan.remoting.transport.jgroups.SiteMasterPickerImpl.pickRoute(SiteMasterPickerImpl.java:26)
	at org.jgroups.protocols.relay.Relayer.getRoute(Relayer.java:126)
	at org.jgroups.protocols.relay.RELAY2.route(RELAY2.java:566)
	at org.jgroups.protocols.relay.RELAY2.down(RELAY2.java:425)
	at org.jgroups.stack.Protocol.down(Protocol.java:317)
	at org.jgroups.fork.ForkProtocol.down(ForkProtocol.java:42)
	at org.jgroups.fork.ForkProtocolStack.down(ForkProtocolStack.java:62)
	at org.jgroups.fork.ForkChannel.send(ForkChannel.java:222)
	at org.jgroups.fork.ForkChannel.send(ForkChannel.java:21)
	at org.infinispan.remoting.transport.jgroups.JGroupsTransport.send(JGroupsTransport.java:1035)
{code}

One possible solution is to do a copy of the list before changing it in the view change method invocation (for the bridge)



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