Some cleanup related to JvmtiEnvBase::get_threadOop_and_JavaThread method Testing: tier1-6
------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/18986/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18986&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8330852 Stats: 42 lines in 3 files changed: 3 ins; 10 del; 29 mod Patch: https://git.openjdk.org/jdk/pull/18986.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18986/head:pull/18986 PR: https://git.openjdk.org/jdk/pull/18986
