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. ------------- Commit messages: - test reliability improvements Changes: https://git.openjdk.org/jdk/pull/24143/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24143&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8298783 Stats: 23 lines in 1 file changed: 10 ins; 0 del; 13 mod Patch: https://git.openjdk.org/jdk/pull/24143.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24143/head:pull/24143 PR: https://git.openjdk.org/jdk/pull/24143
