192       to actually be an OopHandle. Performs a logical "and" operation
 193       of the bits of the address and the mask (least significant bits
 194       of the Address and the mask are aligned) and returns the result
 195       as an Address. Returns null if the result was zero. */
 196   public Address    andWithMask(long mask) throws UnsupportedOperationException;
 197 
 198   /** This throws an UnsupportedOperationException if this address happens
 199       to actually be an OopHandle. Performs a logical "or" operation
 200       of the bits of the address and the mask (least significant bits
 201       of the Address and the mask are aligned) and returns the result
 202       as an Address. Returns null if the result was zero. */
 203   public Address    orWithMask(long mask) throws UnsupportedOperationException;
 204 
 205   /** This throws an UnsupportedOperationException if this address happens
 206       to actually be an OopHandle. Performs a logical "exclusive or"
 207       operation of the bits of the address and the mask (least
 208       significant bits of the Address and the mask are aligned) and
 209       returns the result as an Address. Returns null if the result was
 210       zero. */
 211   public Address    xorWithMask(long mask) throws UnsupportedOperationException;



 212 }

 192       to actually be an OopHandle. Performs a logical "and" operation
 193       of the bits of the address and the mask (least significant bits
 194       of the Address and the mask are aligned) and returns the result
 195       as an Address. Returns null if the result was zero. */
 196   public Address    andWithMask(long mask) throws UnsupportedOperationException;
 197 
 198   /** This throws an UnsupportedOperationException if this address happens
 199       to actually be an OopHandle. Performs a logical "or" operation
 200       of the bits of the address and the mask (least significant bits
 201       of the Address and the mask are aligned) and returns the result
 202       as an Address. Returns null if the result was zero. */
 203   public Address    orWithMask(long mask) throws UnsupportedOperationException;
 204 
 205   /** This throws an UnsupportedOperationException if this address happens
 206       to actually be an OopHandle. Performs a logical "exclusive or"
 207       operation of the bits of the address and the mask (least
 208       significant bits of the Address and the mask are aligned) and
 209       returns the result as an Address. Returns null if the result was
 210       zero. */
 211   public Address    xorWithMask(long mask) throws UnsupportedOperationException;
 212 
 213   // return address as long integer.
 214   public long asLongValue();
 215 }