233     }
 234 
 235     /**
 236       * Retrieves the address at index posn.
 237       * @param posn The index of the address to retrieve.
 238       * @return The address at the 0-based index posn. It must be in the
 239       *         range [0,getAddressCount()).
 240       * @exception ArrayIndexOutOfBoundsException If posn not in the specified
 241       *         range.
 242       */
 243     public RefAddr get(int posn) {
 244         return addrs.elementAt(posn);
 245     }
 246 
 247     /**
 248       * Retrieves an enumeration of the addresses in this reference.
 249       * When addresses are added, changed or removed from this reference,
 250       * its effects on this enumeration are undefined.
 251       *
 252       * @return An non-null enumeration of the addresses
 253       *         (<tt>RefAddr</tt>) in this reference.
 254       *         If this reference has zero addresses, an enumeration with
 255       *         zero elements is returned.
 256       */
 257     public Enumeration<RefAddr> getAll() {
 258         return addrs.elements();
 259     }
 260 
 261     /**
 262       * Retrieves the number of addresses in this reference.
 263       *
 264       * @return The nonnegative number of addresses in this reference.
 265       */
 266     public int size() {
 267         return addrs.size();
 268     }
 269 
 270     /**
 271       * Adds an address to the end of the list of addresses.
 272       *
 273       * @param addr The non-null address to add.

 233     }
 234 
 235     /**
 236       * Retrieves the address at index posn.
 237       * @param posn The index of the address to retrieve.
 238       * @return The address at the 0-based index posn. It must be in the
 239       *         range [0,getAddressCount()).
 240       * @exception ArrayIndexOutOfBoundsException If posn not in the specified
 241       *         range.
 242       */
 243     public RefAddr get(int posn) {
 244         return addrs.elementAt(posn);
 245     }
 246 
 247     /**
 248       * Retrieves an enumeration of the addresses in this reference.
 249       * When addresses are added, changed or removed from this reference,
 250       * its effects on this enumeration are undefined.
 251       *
 252       * @return An non-null enumeration of the addresses
 253       *         ({@code RefAddr}) in this reference.
 254       *         If this reference has zero addresses, an enumeration with
 255       *         zero elements is returned.
 256       */
 257     public Enumeration<RefAddr> getAll() {
 258         return addrs.elements();
 259     }
 260 
 261     /**
 262       * Retrieves the number of addresses in this reference.
 263       *
 264       * @return The nonnegative number of addresses in this reference.
 265       */
 266     public int size() {
 267         return addrs.size();
 268     }
 269 
 270     /**
 271       * Adds an address to the end of the list of addresses.
 272       *
 273       * @param addr The non-null address to add.