[jboss-jira] [JBoss JIRA] (JGRP-1842) ForkChannel.getFORK(...) is not thread-safe

[Paul Ferraro (JIRA)]

Paul Ferraro created JGRP-1842:
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             Summary: ForkChannel.getFORK(...) is not thread-safe
                 Key: JGRP-1842
                 URL: https://issues.jboss.org/browse/JGRP-1842
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 3.4.4
            Reporter: Paul Ferraro
            Assignee: Bela Ban


If multiple concurrent threads attempt to create a ForkChannel using the same fork stack, and the flag is enabled that attempts to create the FORK protocol if missing - the FORK protocol can inadvertently insert multiple times.  There needs to be some thread synchronization between the findProtocol(FORK.class) and protocol creation/insertion.



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