RFR: 8306324: StopThread results in thread being marked as interrupted, leading to unexpected InterruptedException [v3]

[David Holmes]

On Tue, 29 Jul 2025 15:23:29 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> I don't think the current proposed change (which drop's setting the interrupt flag in install_async_exception) will cause a target thread blocked in sleep to wakeup. A target thread blocked in JavaThread::sleep_nanos will wakeup from park_nanos but will just park again with the remaining time. I assume this is the test failures that Serguei mentions.

Right but that is why there was a tweak to `sleep_nanos`:

if (has_async_exception_condition()) {
      return false;
}

But that tweak has now been removed hence this fix no longer maintains the functionality of `StopThread`.

And again this issue of leaving the interrupt flag set has existed "forever".

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PR Comment: https://git.openjdk.org/jdk/pull/26365#issuecomment-3134402208