[jdk19] RFR: 8289439: Clarify relationship between ThreadStart/ThreadEnd and can_support_virtual_threads capability

[Serguei Spitsyn]

On Thu, 30 Jun 2022 13:20:22 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> The description of the ThreadStart/End events in the JVM TI spec needs rewording to make it clearer when these events are sent for virtual threads and when VirtualThreadXXX events are sent instead.

src/hotspot/share/prims/jvmti.xml line 12902:

> 12900:       <code>can_support_virtual_threads</code></internallink> is not enabled.
> 12901:       This ensures that agents that enable this event, but without this
> 12902:       capability, are notified when all threads start.

It feels like this sentence can be improved. But I can't suggest anything yet.

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PR: https://git.openjdk.org/jdk19/pull/94