Github user jwagenleitner commented on a diff in the pull request:
https://github.com/apache/groovy/pull/219#discussion_r61764022
--- Diff: src/main/org/codehaus/groovy/util/ManagedReference.java ---
@@ -46,7 +46,6 @@ public final T get() {
public final void clear() {
ref.clear();
- manager.removeStallEntries();
--- End diff --
`ClassInfo#finalizeReference` calls `setStrongMetaClass(null)` which in
turn calls `replaceWeakMetaClassRef(null)` which calls `weakRef#clear` which is
on ManagedReference. This causes a recursive call back into the queue can can
lead to stackoverflow if there are lots of ClassInfo ManagedReferences in the
Reference Queue.
A related PR that attempts to prevent this reentrant processing is PR #298.
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