FollowReferences with null initial_object starts heap walking from "heap roots", which include system classes. All oops from ClassLoaderDataGraph are reported with JVMTI_HEAP_REFERENCE_SYSTEM_CLASS kind, but some of the objects are not classes. The fix updates FollowReferences to report non-class objects from ClassLoaderDataGraph as JVMTI_HEAP_REFERENCE_OTHER
Testing: tier1..4,hs-tier5-svc ------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/28224/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28224&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8371083 Stats: 211 lines in 3 files changed: 208 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/28224.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28224/head:pull/28224 PR: https://git.openjdk.org/jdk/pull/28224
