RFR: 8267952: async logging supports to dynamically change tags and decorators

[Xin Liu]

On Tue, 15 Jun 2021 12:40:18 GMT, David Holmes <david.holmes at oracle.com> wrote:

> for the AsyncLogWriter, but as you pointed out when I asked, this thread
can't be a NamedThread because that is a special kind of GC thread. So
that method should not be there.

Here is original answer: "NamedThread() is not just NonJavaThread with a name.  It has some gc-specific fields. it seams NamedThread is for GC threads. Further, I don't need to support dynamic names."

Yes, you're right. Sidetrack it here JDK-8268852. 
I misinterpret the member function is_Named_Thread().

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PR: https://git.openjdk.java.net/jdk/pull/4408