The fix makes the map in sun.net.httpserver.UnmodifiableHeaders unmodifiable by wrapping it in an unmodifiable view.
------------- Commit messages: - fix imports - Merge branch 'master' into 8263506 - fix UnmodifiableHeaders impl - add initial test Changes: https://git.openjdk.java.net/jdk/pull/3032/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3032&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8263506 Stats: 146 lines in 2 files changed: 136 ins; 1 del; 9 mod Patch: https://git.openjdk.java.net/jdk/pull/3032.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/3032/head:pull/3032 PR: https://git.openjdk.java.net/jdk/pull/3032
