RFR: 8301457: Code in SendPortZero.java is uncommented even after JDK-8236852 was fixed

[Michael McMahon]

Hi,

JDK-8236852 was fixed in 15 and included its own regression test, but a couple of existing tests have code commented out that also test this functionality. One scenario relating to sending to the wildcard address was not addressed and remains commented out.

Thanks,
Michael.

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Commit messages:
 - test cases update

Changes: https://git.openjdk.org/jdk/pull/14952/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14952&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301457
  Stats: 33 lines in 2 files changed: 12 ins; 14 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/14952.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14952/head:pull/14952

PR: https://git.openjdk.org/jdk/pull/14952