Adds a JFR event for socket connect operations. Existing tests TestSocketEvents and TestSocketChannelEvents modified to also check for connect events.
------------- Commit messages: - fix default settings - fix merge - Merge branch 'master' into JDK-8310996 - added tests and support for sockets. - 8310996: Add JFR event for connect operations Changes: https://git.openjdk.org/jdk/pull/21528/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21528&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8310996 Stats: 247 lines in 12 files changed: 236 ins; 3 del; 8 mod Patch: https://git.openjdk.org/jdk/pull/21528.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/21528/head:pull/21528 PR: https://git.openjdk.org/jdk/pull/21528
