[jdk17u-dev] RFR: 8205076: [17u] Inet6AddressImpl.c: `lookupIfLocalHost` accesses `int InetAddress.preferIPv6Address` as a boolean [v2]

[Aleksey Shipilev]

> This is a 11u and 17u -specific bug, see JBS and its comments for more details. I think we can fix this by explicitly checking against the `PREFER_IPV6_VALUE`, like post JDK 18 code does.
> 
> Additional testing:
>  - [x] macos-aarch64-server-fastdebug, `DcmdMBeanTestCheckJni.java` now passes
>  - [x]  macos-aarch64-server-fastdebug, `jdk_net`

Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into JDK-8205076-macosx-ipv6-check-jni
 - Fix

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/2048/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/2048/files/fa0cd6b8..841b6fb6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2048&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2048&range=00-01

  Stats: 10262 lines in 202 files changed: 5884 ins; 2239 del; 2139 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2048.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2048/head:pull/2048

PR: https://git.openjdk.org/jdk17u-dev/pull/2048