RFR: 8345432: (ch, fs) Replace anonymous Thread with InnocuousThread [v2]

[Alan Bateman]

On Thu, 12 Dec 2024 19:02:25 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

>> Okay, I will create a CSR.
>
> [CSR](https://bugs.openjdk.org/browse/JDK-8346124) filed.

I tweaked the CSR wording to make it clear that this is about inheritance.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22697#discussion_r1887086897