cong yang created GROOVY-11271:
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Summary: ConcurrentCommonCache causes memory leaks.
Key: GROOVY-11271
URL: https://issues.apache.org/jira/browse/GROOVY-11271
Project: Groovy
Issue Type: Bug
Components: ast builder
Affects Versions: 4.0.7
Reporter: cong yang
ConcurrentCommonCache uses a read-write lock to wrap CommonCache into a
thread-safe data structure. However, CommonCache uses the underlying
LinkedHashMap, which causes conflicts when using the LRU algorithm because the
LinkedHashMap.get method modifies the internal linked list. This conflicts with
the read lock used by the get method in ConcurrentCommonCache when multiple
threads access it. Due to multithreading conflicts, the maximum cache size of
64 becomes ineffective, ultimately causing memory leaks. Additionally, we have
already encountered memory leaks in our production environment.
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