Hi. A funtion i had to implement is one that returns a assertionerror given a msg and a throwable (initCause with the throwable) simply because it's such a common pattern to throw a assertionerror on "impossible" (buggy) exceptions. Without the cause, it's sometimes hard to guess the problem without recompiling the code more than once.
I'd like another constructor in AssertionError (that takes a msg and a throwable). As i said i did this on a static function, so it's not important to me, but might simplify things for others (-3 lines of code in catch clauses).
