To reproduce, on any win32 platform:

cd src/share/test/java2d/J2DBench
java_g J2DBench
*CRASH!*

There is an exception thrown in native code about a memory underwrite problem.

This problem was seen before, but was not reproduced (presumably because the
test was first run with java_g, but run with java ever after, so the bug got
closed because noone saw it after the first instance).

The bug has been present in Merlin for months (I tested this against build 52
and the bug was there as well).

The previous bug that was closed on this subject was 4421991.