case PersisterEnums.TIMER_NODE_INSTANCE :
nodeInstance = new TimerNodeInstance();
((TimerNodeInstance) nodeInstance).internalSetTimerId( stream.readLong() );
break;
case PersisterEnums.JOIN_NODE_INSTANCE :
nodeInstance = new JoinInstance();
int number = stream.readInt();
if ( number > 0 ) {
Map<Long, Integer> triggers = new HashMap<Long, Integer>();
for ( int i = 0; i < number; i++ ) {
long l = stream.readLong();