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

[Zhengyu Gu]

On Thu, 21 Jul 2022 13:18:25 GMT, Coleen Phillimore <coleenp 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.

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