rednaxelafx commented on PR #37202:
URL: https://github.com/apache/spark/pull/37202#issuecomment-1190554647

   Thank you very much for the reply!
   
   Janino 3.0.x is indeed deprecated, and the 3.0.16 release was a special case 
specifically done for Spark after some bugfixes were made on top of 3.0.15 from 
Spark contributors.
   
   That said, given previous attempts to upgrade to Janino 3.1.x line in Spark 
all hit various issues that ended up getting reverted, I don't feel 
particularly comfortable with the upgrade. The bug mentioned above 
https://github.com/janino-compiler/janino/issues/165 can be easily fixed on top 
of 3.0.16 too, although we already know there's unlikely going to be any new 
3.0.x releases...
   
   There are many options here. I'm okay with this PR as-is, but in case we hit 
bugs with this version of Janino we may still want to roll back to 3.0.16 and 
try other options, e.g. forking or patching on top of 3.0.16.


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