RFR: 8256811: Delayed/missed jdwp class unloading events [v18]

[Serguei Spitsyn]

On Thu, 21 Jul 2022 13:33:01 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

> > Hi, it was added because some tests were failing. With the concurrent posting, we were missing events and flushing them made the tests pass.
> 
> Thanks, @coleenp Can you recall what were those tests?
> 
> I removed the block and passed `vmTestbase_nsk_jdi`, `vmTestbase_nsk_jdwp` and `hotspot_serviceability` on Linux x86_64, I know Oracle has more tests.

I'd suggest to run additionally: `vmTestbase_nsk_jvmti`, `vmTestbase_nsk_jdb` and `jdk_jdi` (jdk/com/sun/jdi).

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PR: https://git.openjdk.org/jdk/pull/9168