Little endian to big endian in Groovy 2.0?

Question

Whats the best way to convert a little endian number to a big endian number?

def i = 0x12345678;
def j = 0x78563412;
assert i == convert(j) // ?

I know I could mask the bytes and reorder them but what's a groovier way?

Answer 1

Good ol' Java (SE5+):

assert i == Integer.reverseBytes(j)

but Groovier:

def convert = Integer.&reverseBytes
assert i == convert(j)