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

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 Fix For: 3.4.5, 3.5 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.