agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/HeapRegionSeq.java

*** 40,49 ****
--- 40,51 ----
  // Mirror class for HeapRegionSeq. It essentially encapsulates the G1HeapRegionTable.
  
  public class HeapRegionSeq extends VMObject {
      // G1HeapRegionTable _regions
      static private long regionsFieldOffset;
+     // uint _allocated_lenght
+     static private CIntegerField allocatedLengthField;
  
      static {
          VM.registerVMInitializedObserver(new Observer() {
                  public void update(Observable o, Object data) {
                      initialize(VM.getVM().getTypeDataBase());
*** 53,62 ****
--- 55,65 ----
  
      static private synchronized void initialize(TypeDataBase db) {
          Type type = db.lookupType("HeapRegionSeq");
  
          regionsFieldOffset = type.getField("_regions").getOffset();
+         allocatedLengthField = type.getCIntegerField("_allocated_length");
      }
  
      private G1HeapRegionTable regions() {
          Address regionsAddr = addr.addOffsetTo(regionsFieldOffset);
          return (G1HeapRegionTable) VMObjectFactory.newObject(G1HeapRegionTable.class,
*** 65,76 ****
  
      public long length() {
          return regions().length();
      }
  
      public Iterator<HeapRegion> heapRegionIterator() {
!         return regions().heapRegionIterator();
      }
  
      public HeapRegionSeq(Address addr) {
          super(addr);
      }
--- 68,83 ----
  
      public long length() {
          return regions().length();
      }
  
+     public long allocatedLength() {
+         return allocatedLengthField.getValue(addr);
+     }
+     
      public Iterator<HeapRegion> heapRegionIterator() {
!         return regions().heapRegionIterator(allocatedLength());
      }
  
      public HeapRegionSeq(Address addr) {
          super(addr);
      }