los = new RefCountLOSLocal(losVM, losMR);
los = new RefCountLOSLocal(losVM, rcMR);
  public Plan() {    incBuffer = new AddressQueue("inc buf", incPool);    decBuffer = new AddressQueue("dec buf", decPool);    rootSet = new AddressQueue("root set", rootPool);    los = new RefCountLOSLocal(losVM, losMR);    rc = new RefCountLocal(rcSpace, this, los, incBuffer, decBuffer, rootSet);  }