[jdk21u-dev] RFR: 8330278: Have SSLSocketTemplate.doClientSide use loopback address

[Goetz Lindenmaier]

I backport this for parity with 21.0.6-oracle.

Resolved import in TLSBase. Probably clean.

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Commit messages:
 - Backport 0eff492e4107abc5624f0c3445877bf38629a980

Changes: https://git.openjdk.org/jdk21u-dev/pull/1140/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1140&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8330278
  Stats: 4 lines in 2 files changed: 1 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1140.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1140/head:pull/1140

PR: https://git.openjdk.org/jdk21u-dev/pull/1140