/** ***************************************************************** */
 public static void test_Oflow()
     throws ReSyntaxException, CompileDfaException, java.io.IOException {
   StringBuffer s = new StringBuffer();
   for (int i = 0; i < 256; i++) s.append("(!a)x");
   Exception e = null;
   try {
     Nfa nfa = new Nfa(s, Copy.COPY);
   } catch (ReSyntaxException _e) {
     // we want this to happen
     e = _e;
   }
   assertTrue(e instanceof ReSyntaxException);
   assertTrue(e.toString().startsWith("ReSyntaxException: too many"));
 }