replaced mutex with Promise in _getState()
replaced mutex with Promise in _getState()

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