Java: array clean up and store check optimization

[Tom Tromey]

>>>>> "Bryce" == Bryce McKinlay <bryce@waitaki.otago.ac.nz> writes:

Bryce> Despite its naivety, this optimization is enough to double
Bryce> GCJ's performance on the infamous ShellSort.java, making it
Bryce> about 20% faster than Linux JDK 1.4 even without using
Bryce> --no-store-check or --no-bounds-check.

Wow, that's impressive.  Please add a news item for this patch to the
java web page once it is committed.

Tom