harness.checkPoint("enumerate(ThreadGroup[], boolean)");
for (int i = 0; i <= 1; i++) {
try {
sm.prepareChecks(noChecks);
testGroup.enumerate(new ThreadGroup[0], i == 1);
sm.checkAllChecked();
}
catch (SecurityException ex) {
harness.debug(ex);
harness.check(false, "unexpected check");
}