fixed ConcurrentModificationException (https://jira.jboss.org/jira/browse/JGRP-876)
fixed ConcurrentModificationException (https://jira.jboss.org/jira/browse/JGRP-876)

pruivo/JGroups,vjuranek/JGroups,slaskawi/JGroups,deepnarsay/JGroups,rpelisse/JGroups,rhusar/JGroups,danberindei/JGroups,kedzie/JGroups,belaban/JGroups,dimbleby/JGroups,tristantarrant/JGroups,slaskawi/JGroups,pferraro/JGroups,TarantulaTechnology/JGroups,ibrahimshbat/JGroups,pferraro/JGroups,Sanne/JGroups,ligzy/JGroups,vjuranek/JGroups,ibrahimshbat/JGroups,dimbleby/JGroups,Sanne/JGroups,deepnarsay/JGroups,danberindei/JGroups,TarantulaTechnology/JGroups,dimbleby/JGroups,rpelisse/JGroups,danberindei/JGroups,ligzy/JGroups,rhusar/JGroups,ibrahimshbat/JGroups,belaban/JGroups,rpelisse/JGroups,rhusar/JGroups,TarantulaTechnology/JGroups,Sanne/JGroups,kedzie/JGroups,pruivo/JGroups,vjuranek/JGroups,pruivo/JGroups,rvansa/JGroups,tristantarrant/JGroups,deepnarsay/JGroups,ibrahimshbat/JGroups,belaban/JGroups,kedzie/JGroups,slaskawi/JGroups,pferraro/JGroups,rvansa/JGroups,ligzy/JGroups