RFR: JDK-8314517: some tests fail in case ipv6 is disabled on the machine

[Martin Doerr]

On Fri, 18 Aug 2023 06:53:19 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Some jtreg tests fail with ipv6 disabled on the machine, this should be improved in the tests (e.g. by using IPSupport.hasIPv6() ).

Looks reasonable.

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Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15341#pullrequestreview-1584097547