58     return reservedRegion().start();
  59   }
  60 
  61   public long capacity() { return 0; }
  62   public long used()     { return 0; }
  63 
  64   public MemRegion reservedRegion() {
  65     return new MemRegion(addr.addOffsetTo(reservedFieldOffset));
  66   }
  67 
  68   public boolean isIn(Address a) {
  69     return isInReserved(a);
  70   }
  71 
  72   public boolean isInReserved(Address a) {
  73     return reservedRegion().contains(a);
  74   }
  75 
  76   public abstract CollectedHeapName kind();
  77 


  78   public void print() { printOn(System.out); }
  79   public void printOn(PrintStream tty) {
  80     MemRegion mr = reservedRegion();
  81     tty.println("unknown subtype of CollectedHeap @ " + getAddress() + " (" +
  82                 mr.start() + "," + mr.end() + ")");
  83   }
  84 }

  58     return reservedRegion().start();
  59   }
  60 
  61   public long capacity() { return 0; }
  62   public long used()     { return 0; }
  63 
  64   public MemRegion reservedRegion() {
  65     return new MemRegion(addr.addOffsetTo(reservedFieldOffset));
  66   }
  67 
  68   public boolean isIn(Address a) {
  69     return isInReserved(a);
  70   }
  71 
  72   public boolean isInReserved(Address a) {
  73     return reservedRegion().contains(a);
  74   }
  75 
  76   public abstract CollectedHeapName kind();
  77 
  78   public Generation getGen(int n) { return null; }
  79 
  80   public void print() { printOn(System.out); }
  81   public void printOn(PrintStream tty) {
  82     MemRegion mr = reservedRegion();
  83     tty.println("unknown subtype of CollectedHeap @ " + getAddress() + " (" +
  84                 mr.start() + "," + mr.end() + ")");
  85   }
  86 }