RFR: 8251904: vmTestbase/nsk/sysdict/vm/stress/btree/btree010/btree010.java fails with ClassNotFoundException: nsk.sysdict.share.BTree0LLRLRLRRLR

David Holmes dholmes at openjdk.java.net
Mon Oct 25 20:59:07 UTC 2021

On Mon, 25 Oct 2021 17:53:32 GMT, Harold Seigel <hseigel at openjdk.org> wrote:

> Please review this fix for JDK-8251904.  The fix ignores ClassNotFoundExceptions that are thrown when calling Class.forName() because they can be caused by OutOfMemoryErrors.  These can get thrown because of other threads calling GarbageUtils.eatMemory().
> The test was run 1000 times on Linux x64 without the fix and failed once.  It was run 5000 times with the fix and had no failures.  The change was also tested by running Mach5 tier5 on Windows and Linux.
> Thanks, Harold

Hi Harold,

This fix seems fine and trivial. These tests are known to be bad when it comes to exhausting memory.



Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6111

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