593         private String name;

   593         private String name;

   594 

   594 

   595         /**

   595         /**

   596          * Constructs a new <code>Subset</code> instance.

   596          * Constructs a new <code>Subset</code> instance.

   597          *

   597          *

   599          * @param  name  The name of this subset

   598          * @param  name  The name of this subset

   600          * @exception NullPointerException if name is <code>null</code>

   599          * @exception NullPointerException if name is <code>null</code>

   601          */

   600          */

   602         protected Subset(String name) {

   601         protected Subset(String name) {

   603             if (name == null) {

   602             if (name == null) {