When doing [JDK-8317603](https://bugs.openjdk.org/browse/JDK-8317603), it became clear that NET_SocketAvailable should be replaced.
------------- Commit messages: - JDK-8317866 Changes: https://git.openjdk.org/jdk/pull/16139/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16139&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8317866 Stats: 34 lines in 4 files changed: 4 ins; 27 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/16139.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16139/head:pull/16139 PR: https://git.openjdk.org/jdk/pull/16139
