lidavidm commented on PR #38396:
URL: https://github.com/apache/arrow/pull/38396#issuecomment-1775206066

   I assume you can come up with some data that is incompressible, which would 
overflow the buffer in the old code, and that _should_ cause an exception when 
writerIndex is set, or else it would have caused a compress-decompress 
roundtrip to fail
   
   @shujiewu did you observe an exception in your code? Or just silently 
corrupted data?


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