86     return CompactingPermGenGen.isSharedReadWrite(handle);
  87   }
  88 
  89   // Accessors for declared fields
  90   public Mark  getMark()   { return new Mark(getHandle()); }
  91   public Klass getKlass() {
  92     if (VM.getVM().isCompressedOopsEnabled()) {
  93       return (Klass) compressedKlass.getValue(this);
  94     } else {
  95       return (Klass) klass.getValue(this);
  96     }
  97   }
  98 
  99   public boolean isA(Klass k) {
 100     return getKlass().isSubtypeOf(k);
 101   }
 102 
 103   // Returns the byte size of this object
 104   public long getObjectSize() {
 105     Klass k = getKlass();
 106     if (k instanceof InstanceKlass) {
 107         return ((InstanceKlass)k).getSizeHelper()
 108             * VM.getVM().getAddressSize();
 109     }
 110     // If it is not an instance, this method should be replaced.
 111     return getHeaderSize();
 112   }
 113 
 114   // Type test operations
 115   public boolean isInstance()          { return false; }
 116   public boolean isInstanceRef()       { return false; }
 117   public boolean isArray()             { return false; }
 118   public boolean isObjArray()          { return false; }
 119   public boolean isTypeArray()         { return false; }
 120   public boolean isSymbol()            { return false; }
 121   public boolean isKlass()             { return false; }
 122   public boolean isThread()            { return false; }
 123   public boolean isMethod()            { return false; }
 124   public boolean isMethodData()        { return false; }
 125   public boolean isConstantPool()      { return false; }
 126   public boolean isConstantPoolCache() { return false; }
 127   public boolean isCompiledICHolder()  { return false; }
 128 
 129   // Align the object size.
 130   public static long alignObjectSize(long size) {
 131     return VM.getVM().alignUp(size, VM.getVM().getMinObjAlignmentInBytes());
 132   }

  86     return CompactingPermGenGen.isSharedReadWrite(handle);
  87   }
  88 
  89   // Accessors for declared fields
  90   public Mark  getMark()   { return new Mark(getHandle()); }
  91   public Klass getKlass() {
  92     if (VM.getVM().isCompressedOopsEnabled()) {
  93       return (Klass) compressedKlass.getValue(this);
  94     } else {
  95       return (Klass) klass.getValue(this);
  96     }
  97   }
  98 
  99   public boolean isA(Klass k) {
 100     return getKlass().isSubtypeOf(k);
 101   }
 102 
 103   // Returns the byte size of this object
 104   public long getObjectSize() {
 105     Klass k = getKlass();
 106     // All other types should be overriding getObjectSize directly
 107     return ((InstanceKlass)k).getObjectSize(this);

 108   }



 109 
 110   // Type test operations
 111   public boolean isInstance()          { return false; }
 112   public boolean isInstanceRef()       { return false; }
 113   public boolean isArray()             { return false; }
 114   public boolean isObjArray()          { return false; }
 115   public boolean isTypeArray()         { return false; }
 116   public boolean isSymbol()            { return false; }
 117   public boolean isKlass()             { return false; }
 118   public boolean isThread()            { return false; }
 119   public boolean isMethod()            { return false; }
 120   public boolean isMethodData()        { return false; }
 121   public boolean isConstantPool()      { return false; }
 122   public boolean isConstantPoolCache() { return false; }
 123   public boolean isCompiledICHolder()  { return false; }
 124 
 125   // Align the object size.
 126   public static long alignObjectSize(long size) {
 127     return VM.getVM().alignUp(size, VM.getVM().getMinObjAlignmentInBytes());
 128   }