Integrated: 8298783: java/lang/ref/FinalizerHistogramTest.java failed with "RuntimeException: MyObject is not found in test output"

[Brent Christian]

On Thu, 20 Mar 2025 22:35:23 GMT, Brent Christian <bchristi at openjdk.org> wrote:

> I propose some cleanups to `FinalizerHistogramTest.java` to hopefully clear up the intermittent failures:
> 
> * run with `othervm`: this test blocks the (global) finalizer thread, and also requires the (global) finalizer thread to enter the test's `finalize()` method
> * The test uses `volatile` ints, but sets them based on their current value, which is not reliable; convert to `AtomicInteger`
> * use `PhantomReference`s to ensure that at least two `MyObject`s have become unreachable. If one is stuck in `finalize()`, at least one is still waiting to be finalized and should show up in the histogram.

This pull request has now been integrated.

Changeset: fe29cad5
Author:    Brent Christian <bchristi at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/fe29cad5e0b10cd088fc39967599f5a8dcaa445c
Stats:     28 lines in 1 file changed: 14 ins; 1 del; 13 mod

8298783: java/lang/ref/FinalizerHistogramTest.java failed with "RuntimeException: MyObject is not found in test output"

Reviewed-by: kbarrett, jpai

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PR: https://git.openjdk.org/jdk/pull/24143