[jdk21u-dev] RFR: 8201183: sjavac build failures: "Connection attempt failed: Connection refused"

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

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Commit messages:
 - Backport ecc603ca9b441cbb7ad27fbc2529fcb0b1da1992

Changes: https://git.openjdk.org/jdk21u-dev/pull/2162/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2162&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8201183
  Stats: 32 lines in 1 file changed: 12 ins; 8 del; 12 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2162.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2162/head:pull/2162

PR: https://git.openjdk.org/jdk21u-dev/pull/2162