FCI.getTargets() should be Immutable ------------------------------------ Key: JBAS-2225 URL: http://jira.jboss.com/jira/browse/JBAS-2225 Project: JBoss Application Server Issue Type: Sub-task Security Level: Public(Everyone can see) Components: Clustering Affects Versions: JBossAS-4.0.3RC2 Reporter: Adrian Brock Assigned To: Brian Stansberry Fix For: JBossAS-4.0.5.CR1 The targets returned from the FamilyClusterInfoImpl.getTargets() should not be modified, otherwise you can cause ConcurrentModificationException. To better trap people introducing errors in this area, make a subclass of ArrayList called ImmutableArrayList and return an implementation of this class from getTargets.