How to use

TestRoundtrip

in

org.jibx.extras

fout = (args.length < base+4) ? fin : args[base+3];
try {
  if (!TestRoundtrip.runTest(args[base], args[base+1], fin,
    fout)) {
    err = true;

fout = (args.length < base+3) ? fin : args[base+2];
try {
  if (!runTest(args[base], null, fin, fout)) {
    err = true;