tracingBuffer = new AddressDequeue("tracing buffer", tracingPool);
tracingBuffer = new AddressDeque("tracing buffer", tracingPool);
  RefCountLocal(RefCountSpace space, Plan plan_, RefCountLOSLocal los_, 		AddressDequeue inc, AddressDequeue dec, AddressDequeue root) {    super(space.getVMResource(), space.getMemoryResource(), plan_);    rcSpace = space;    plan = plan_;    los = los_;    incBuffer = inc;    decBuffer = dec;    rootSet = root;    if (Plan.REF_COUNT_SANITY_TRACING) {      tracingBuffer = new AddressDequeue("tracing buffer", tracingPool);    }    if (Plan.REF_COUNT_CYCLE_DETECTION)      cycleDetector = new TrialDeletion(this, plan_);  }