RFR: 8364343: Virtual Thread transition management needs to be independent of JVM TI [v7]

[Coleen Phillimore]

On Wed, 26 Nov 2025 22:48:01 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>> Why is there the same flag with the same name in both the Java class and C++ JavaThread?  Might be an efficient cache, so something should say that (if true).
>
> The one in `JavaThread` is needed for the `disable_transition_for_all` case. Processing each vthread is not viable, so we instead process all `JavaThreads`. If no `JavaThread` is in a transition then it implies no vthread is in a transition.

So why do you need one in java_lang_Thread then?

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PR Review Comment: https://git.openjdk.org/jdk/pull/28361#discussion_r2578256282