RFR: 8314515: java/util/concurrent/SynchronousQueue/Fairness.java failed with "Error: fair=false i=8 j=0"

[Alan Bateman]

On Tue, 12 Dec 2023 15:13:01 GMT, Viktor Klang <vklang at openjdk.org> wrote:

> While this might not fix 8314515, it should at least make it more exact.

test/jdk/java/util/concurrent/SynchronousQueue/Fairness.java line 42:

> 40:     private static void testFairness(boolean fair,
> 41:                                      final SynchronousQueue<Integer> q,
> 42:                                      final VarHandle underlyingHandle)

The updated approach to wait until the thread is finished putting seems okay. It might be a bit cleaner for the param to testFariness be the underlying LTQ rather than calling it with a VarHandle, meaning do this in the caller.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17082#discussion_r1447689444