Daniel Sun created GROOVY-8437:
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Summary: Implement an atomic `getAndPut` method for `LRUCache`
Key: GROOVY-8437
URL: https://issues.apache.org/jira/browse/GROOVY-8437
Project: Groovy
Issue Type: Improvement
Reporter: Daniel Sun
Assignee: Daniel Sun
Fix For: 3.0.0-alpha-2
Currently LRUCache just provides basic cache function(i.e. get, put), which can
not make sure same entry will not be added multi-times easily and effectively.
In order to resolve the above problem, ConcurrentLinkedHashMap is refined to
support `computeIfAbsent`, which is key function for caches. In addition,
LRUCache implements `getAndPut`, which is based on the `computeIfAbsent`.
Note: the improvement is only available in Groovy 3.0.0+
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