[GitHub] [incubator-uniffle] advancedxy commented on issue #519: [Improvement] Speed up ConcurrentHashMap#computeIfAbsent

["advancedxy (via GitHub)" <gi...@apache.org>]

advancedxy commented on issue #519:
URL: https://github.com/apache/incubator-uniffle/issues/519#issuecomment-1408147883

   Ouch, does `putIfAbsent` has similar issue under JDK 8?
   
   If `putIfAbsent` doesn't have this problem, I believe we should prefer `putIfAbsent` for simple cases to improve readability. 
   
   Otherwise, I'm opt for this solution.
   
   BTW, https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+Java+Versions JDK 1.8 seems to be lasting for a long time since only hadoop 3.3 supports JDK11 in runtime.


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