How do I join two lists in Java?

Question

Conditions: do not modifiy the original lists; JDK only, no external libraries. Bonus points for a one-liner or a JDK 1.3 version.

Is there a simpler way than:

Answer 1

Probably not simpler, but intriguing and ugly:

List newList = new ArrayList() { { addAll(listOne); addAll(listTwo); } };

Don't use it in production code... ;)