RFR: 8275640 (win) java.net.NetworkInterface issues with IPv6-only environments [v5]

[Daniel Jelinski]

> Clean up of various issues related to error handling and memory management

Daniel Jelinski has updated the pull request incrementally with one additional commit since the last revision:

  Remove redundant initialization

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6090/files
  - new: https://git.openjdk.java.net/jdk/pull/6090/files/28f5f531..0626aca7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6090&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6090&range=03-04

  Stats: 3 lines in 2 files changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6090.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6090/head:pull/6090

PR: https://git.openjdk.java.net/jdk/pull/6090