RFR: 8241403: JavaThread::get_thread_name() should be ThreadSMR-aware

[Daniel D.Daugherty]

On Thu, 11 Feb 2021 22:04:53 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

> A minor fix to add a new function:
> 
>     bool Thread::is_JavaThread_protected(const JavaThread* p)
> 
> that returns true when the target JavaThread* is protected and false
> otherwise. Update JavaThread::get_thread_name() to create a
> ThreadsListHandle and use the new is_JavaThread_protected(). Also
> update JvmtiTrace::safe_get_thread_name() to use the new
> is_JavaThread_protected().

@dholmes-ora and @fisk - It looks like both of you are interested
in this fix. @robehn - This one is Thread-SMR related so you might
also want to take a look.

-------------

PR: https://git.openjdk.java.net/jdk/pull/2535