38   static {
39     VM.registerVMInitializedObserver(new Observer() {
40         public void update(Observable o, Object data) {
41           initialize(VM.getVM().getTypeDataBase());
42         }
43       });
44   }
45   private static long typeSize;
46 
47   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
48     Type type = db.lookupType("instanceOopDesc");
49     typeSize = type.getSize();
50   }
51 
52   Instance(OopHandle handle, ObjectHeap heap) {
53     super(handle, heap);
54   }
55 
56   // Returns header size in bytes.
57   public static long getHeaderSize() {



58     if (VM.getVM().isCompressedKlassPointersEnabled()) {
59       return typeSize - VM.getVM().getIntSize();
60     } else {
61       return typeSize;
62     }
63   }
64 
65   public boolean isInstance()          { return true; }
66 
67   public void iterateFields(OopVisitor visitor, boolean doVMFields) {
68     super.iterateFields(visitor, doVMFields);
69     ((InstanceKlass) getKlass()).iterateNonStaticFields(visitor, this);
70   }
71 
72   public void printValueOn(PrintStream tty) {
73     // Special-case strings.
74     // FIXME: would like to do this in more type-safe fashion (need
75     // SystemDictionary analogue)
76     if (getKlass().getName().asString().equals("java/lang/String")) {
77       tty.print("\"" + OopUtilities.stringOopToString(this) + "\"");

38   static {
39     VM.registerVMInitializedObserver(new Observer() {
40         public void update(Observable o, Object data) {
41           initialize(VM.getVM().getTypeDataBase());
42         }
43       });
44   }
45   private static long typeSize;
46 
47   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
48     Type type = db.lookupType("instanceOopDesc");
49     typeSize = type.getSize();
50   }
51 
52   Instance(OopHandle handle, ObjectHeap heap) {
53     super(handle, heap);
54   }
55 
56   // Returns header size in bytes.
57   public static long getHeaderSize() {
58     if (VM.getVM().isCompactObjectHeadersEnabled()) {
59       return Oop.getHeaderSize();
60     }
61     if (VM.getVM().isCompressedKlassPointersEnabled()) {
62       return typeSize - VM.getVM().getIntSize();
63     } else {
64       return typeSize;
65     }
66   }
67 
68   public boolean isInstance()          { return true; }
69 
70   public void iterateFields(OopVisitor visitor, boolean doVMFields) {
71     super.iterateFields(visitor, doVMFields);
72     ((InstanceKlass) getKlass()).iterateNonStaticFields(visitor, this);
73   }
74 
75   public void printValueOn(PrintStream tty) {
76     // Special-case strings.
77     // FIXME: would like to do this in more type-safe fashion (need
78     // SystemDictionary analogue)
79     if (getKlass().getName().asString().equals("java/lang/String")) {
80       tty.print("\"" + OopUtilities.stringOopToString(this) + "\"");