Jikes makes use of a regression test framework called
Jacks. This suite of tests helps to ensure that already
fixed bugs stay fixed and that new code is tested as it
is added. Check out the Jacks component in the
page for more info about how to setup and run the Jacks tests.
Most users will not have any reason to use Jacks, but developers
contributing code to jikes or working on new ports should be
familiar with it.