public Iterator<EscapeTarget> escapeTargetIterator(BasicBlock sourceBlock){
  List<EscapeTarget> escapeTargetList=escapeTargetListMap.get(sourceBlock);
  if (escapeTargetList == null) {
    escapeTargetList=Collections.emptyList();
  }
  return escapeTargetList.iterator();
}

public Iterator < EscapeTarget > escapeTargetIterator ( BasicBlock sourceBlock ) { List < EscapeTarget > escapeTargetList = escapeTargetListMap . get ( sourceBlock ) ; if ( escapeTargetList == null ) { escapeTargetList = Collections . emptyList ( ) ; } return escapeTargetList . iterator ( ) ; }
get an iterator over the escapetargets of given basic block .
