RFR: 8373439: Deadlock between flight recorder & VMDeath

[Bara' Hasheesh]

On Fri, 12 Dec 2025 14:47:00 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> A simple `PlatformRecorder.isInShutDown` check is added to `PlatformRecording.start` to prevent any new recording from start after the JVM initiates it's shutdown hooks  
>> 
>> A new test was added that fails without the change & passes with it 
>> 
>> I also ran `tier1`, `tier2` as well as `jdk_jfr` on Linux x86
>
> @Baraa-Hasheesh would this be a solution for https://bugs.openjdk.org/browse/JDK-8373257?

@tstuefe From the ticket description that looks like a different deadlock 

The deadlock here happens as the `JfrPostBox` will wait infinitely on the `recorderthread` to process it's message, but that thread already exited due to call of `PlatformRecorder.destroy -> JVMSupport.destroyJFR -> JVM.destroyJFR`

Your case seems to be deadlocking somewhere else

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PR Comment: https://git.openjdk.org/jdk/pull/28767#issuecomment-3647155450