Improve `java.net.URI` test coverage for oversized IPv4 octets, in particular, in IPv4-mapped IPv6 addresses.
--------- - [X] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Add tests for oversized IPv4 octets Changes: https://git.openjdk.org/jdk/pull/32786/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=32786&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8391687 Stats: 8 lines in 1 file changed: 8 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/32786.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/32786/head:pull/32786 PR: https://git.openjdk.org/jdk/pull/32786
