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  src/simplexml/XMLElement.java:1503: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
              Enumeration enum = this.attributes.keys();
  9 errors
                          ^
  src/simplexml/XMLElement.java:1505: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
              while (enum.hasMoreElements()) {
                     ^
  src/simplexml/XMLElement.java:1507: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
                  String key = (String) (enum.nextElement());
                                         ^
  src/simplexml/XMLElement.java:1541: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
              Enumeration enum = this.enumerateChildren();
                          ^
  src/simplexml/XMLElement.java:1543: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
              while (enum.hasMoreElements()) {
                     ^
  src/simplexml/XMLElement.java:1544: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
                  XMLElement child = (XMLElement) (enum.nextElement());
                                                   ^
  src/simplexml/XMLElement.java:1666: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
          Enumeration enum = attributes.propertyNames();
                      ^
  src/simplexml/XMLElement.java:1667: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
          while (enum.hasMoreElements()) {
                 ^
  src/simplexml/XMLElement.java:1668: as of release 1.5, 'enum' is a keyword, and may not be used as an identifier
  (try -source 1.4 or lower to use 'enum' as an identifier)
              String propName = (String) enum.nextElement();
                                         ^