arrayRemsetPool.clearDeque(2);
  protected final void globalPrepare() {    nurseryMR.reset(); // reset the nursery    lastGCFull = fullHeapGC;    if (fullHeapGC || IGNORE_REMSET) {      if (fullHeapGC) fullHeapTime.start();      if (Stats.gatheringStats()) fullHeap.set();      // prepare each of the collected regions      losSpace.prepare(losVM, losMR);      globalMaturePrepare();      ImmortalSpace.prepare(immortalVM, null);      // we can throw away the remsets for a full heap GC      remsetPool.clearDeque(1);    }  }