RFR: 8352088: Call of com.sun.jdi.ThreadReference.threadGroups() can lock up target VM [v4]

[Alan Bateman]

On Wed, 26 Mar 2025 20:50:36 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Calling ThreadGroupReference.groups() from an event handler can cause a deadlock. Details in first comment. Tested with :jdk_lang on all supported platforms and tier1, tier2, tier3, and tier5 svc testing.
>
> Chris Plummer has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove unused locals.

Marked as reviewed by alanb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24236#pullrequestreview-2720173139