check for null mcast_sock before closing
check for null mcast_sock before closing

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