[jdk17u-dev] RFR: 8298869: Update ConnectionTest.java for changes to TLS implementation

[Goetz Lindenmaier]

I backport this for parity with 17.0.10-oracle.

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Commit messages:
 - Backport d6007a356f8081290cc745481af160a4cad8a9bb

Changes: https://git.openjdk.org/jdk17u-dev/pull/1815/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1815&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8298869
  Stats: 512 lines in 2 files changed: 93 ins; 172 del; 247 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1815.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1815/head:pull/1815

PR: https://git.openjdk.org/jdk17u-dev/pull/1815