Trivially avoid some redundant calls when creating threads. (ThreadGroup.checkAccess is final, and all it does is call security.checkAccess(g) if there's a SM installed)
------------- Commit messages: - Merge branch 'master' into thread_access - Avoid calling ThreadGroup.checkAccess when no SecurityManager is installed Changes: https://git.openjdk.java.net/jdk/pull/4959/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4959&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8271624 Stats: 8 lines in 1 file changed: 4 ins; 4 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/4959.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/4959/head:pull/4959 PR: https://git.openjdk.java.net/jdk/pull/4959
