[jdk17] RFR: 8269281: java/foreign/TestUpcall.java times out

[Maurizio Cimadamore]

On Thu, 1 Jul 2021 21:11:44 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> The previous fix to this test which used removed the `VerifyDependency` flag worked well, but we're still observing rare timeouts. Looking at the test reports, it seems likely that slightly increasing the timeout would do the trick.

After an offline discussion we agreed to leave the test unchanged at the moment. It is not immediately clear if the problem is the test (which runs in ~40 seconds) or with specific machines, as we're seeing some very wild spikes. The test uses some logic to prod the GC (so that cleaners are run and off-heap resources are released) - but the same logic is also present in the dual TestDowncall which has never timed out.

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PR: https://git.openjdk.java.net/jdk17/pull/198