On Tue, 21 Apr 2026 04:01:30 GMT, SendaoYan <[email protected]> wrote:
> Hi all, > > Test com/sun/jdi/FinalizerTest.java intermittent fails. This is because > arraylist holdAlot do not clear or set as null before recliam heap memory by > invoke System.gc. This PR add arraylist.clear() before call System.gc() to > avoid OOME in the senond System.runFinalization(). > > The first System.runFinalization() has a synchronize bug. > System.runFinalization() run in another low priority Finalizer thread. In the > main thread maybe read variable finalizerRun before Finalizer thread change > it. So waitForAFinalizer will run into whille(true) allocation loop > sometimes. This PR add a countdownlatch synchronize to make sure main thread > read the finalizerRun value after Finalizer thread write it. > > This PR also remove the unused variable and optimize the imports, and add > -Xmx256M to debuggee jvm process, this will make debuggee throw OOME steady > in large physical memory machine. > > Before this PR, test failure probability about 1/30. After this PR test run > 3k times and all passed. > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai). This pull request has now been integrated. Changeset: 7c1f89e4 Author: SendaoYan <[email protected]> URL: https://git.openjdk.org/jdk/commit/7c1f89e4116ef4049a686a9615f780bca1a8c06a Stats: 36 lines in 1 file changed: 16 ins; 8 del; 12 mod 8343606: Test FinalizerTest.java intermittent fails Debuggee heap OOM Reviewed-by: cjplummer ------------- PR: https://git.openjdk.org/jdk/pull/30829
