ConeyLiu commented on PR #7791:
URL: https://github.com/apache/iceberg/pull/7791#issuecomment-1581980893

   Thanks @Fokko for the review. 
   
   > Did you confirm with the new WeakHashMap that the problem has been 
resolved?
   
   It needs to run several weeks or months to trigger the problem. I tested 
locally and the caching works as expected.
   
   > Do you think it is possible to add a check to see if the HashMap actually 
removes objects that are garbage collected? It would be nice to check its 
behavior now, but also we make sure that we keep this behavior in the future 
(it was broken in Avro along the way).
   
   Add the new UTs to cover this. Please take another look when you are free.


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