This test fixes an issue with incomplete Windows threads not yet having a stack. A test for a null stack_base is added to guard against the potential null dereference. An additional test using ZGC is added to the jtreg SystemMapTest.
------------- Commit messages: - Merge branch 'pr_8346717' of https://github.com/stooke/jdk into pr_8346717 - restore deleted function name - add ZGC run of SystemMapTest - fix test for unready thread on Windows Changes: https://git.openjdk.org/jdk/pull/22870/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22870&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8346717 Stats: 13 lines in 2 files changed: 12 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/22870.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22870/head:pull/22870 PR: https://git.openjdk.org/jdk/pull/22870
