[jdk17u-dev] RFR: 8280113: (dc) DatagramSocket.receive does not always throw when the channel is closed

[Goetz Lindenmaier]

I omit the test from this change. 
The test heavily depends on features only available in 21. 
I tried to get it working in 20 because that has virtual threads, 
but there are more things missing.

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Commit messages:
 - Backport b6ecca126846f9c53d554ff061cfe9b7b20a4d12

Changes: https://git.openjdk.org/jdk17u-dev/pull/2445/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2445&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280113
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2445.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2445/head:pull/2445

PR: https://git.openjdk.org/jdk17u-dev/pull/2445