8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win)

[GoeLin]

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I backport this for parity with 17.0.18-oracle.

Needed resolve and adaptions:

Net.java: resolved static initializer. SocketChannelImpl.java: In implCloseBlockingMode(), the code guarded by the new condition is not in 17. Omitted. Update: I added this later.

Net.c: Copyright.

The test exercises platform and virtual threads. I simplified this to what is supported in 17. See extra commit.

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Progress

• [x] Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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• [x] Commit message must refer to an issue
• [ ] JDK-8358764 needs maintainer approval

Issue

• JDK-8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win) (Bug - P3 - Requested)

Reviewers

• Martin Doerr (@TheRealMDoerr - Reviewer)

Reviewing

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