RFR: JDK-8317603: provide handleSocketErrorWithMessage in windows Net.c for extended exception messages

Thu Oct 5 15:21:54 UTC 2023

On Windows, we miss a handleSocketErrorWithMessage function that provides an additional message showing what went wrong in the Net.c coding.  On Unix we have this function. 
This leads sometimes to exceptions like

MSG RTE: javax.naming.CommunicationException: example.com:1234 [Root exception is java.net.ConnectException: Connection timed out: no further information]

see https://bugs.openjdk.org/browse/JDK-8317307

It would be better to have a message explaining the reason instead of "no further information" .

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Commit messages:
 - JDK-8317603

Changes: https://git.openjdk.org/jdk/pull/16057/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16057&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317603
  Stats: 23 lines in 1 file changed: 9 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/16057.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16057/head:pull/16057

PR: https://git.openjdk.org/jdk/pull/16057