The fix updates JVMTI FollowReferences implementation to report references from virtual threads: - added heap scanning to report unmounted vthreads; - stacks of mounted vthreads are splitted into 2 parts (vittual thread stack and carrier thread stack), references are reported with correct thread id/class and object tags/frame depth; - common code to handle stack frames are moved into separate class;
------------- Commit messages: - tab - improved test - Merge branch 'openjdk:master' into vthread_follow_ref - update - tabs again - tabs - update - proto Changes: https://git.openjdk.org/jdk/pull/13254/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13254&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8299414 Stats: 733 lines in 3 files changed: 636 ins; 86 del; 11 mod Patch: https://git.openjdk.org/jdk/pull/13254.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13254/head:pull/13254 PR: https://git.openjdk.org/jdk/pull/13254
