added synchronization to getCallersStack()
added synchronization to getCallersStack()

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