[jdk17u-dev] RFR: 8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win) [v4]

[Goetz Lindenmaier]

> 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.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Adapt comment as proposed by Anton, took wording from his PR 3936

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/4076/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/4076/files/58cce4b1..c16a2c8e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4076&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4076&range=02-03

  Stats: 9 lines in 1 file changed: 0 ins; 5 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4076.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4076/head:pull/4076

PR: https://git.openjdk.org/jdk17u-dev/pull/4076