ctubbsii commented on PR #3355:
URL: https://github.com/apache/accumulo/pull/3355#issuecomment-1526799184

   I have no idea how to test this change, because I don't even know where I'd 
start trying to create a bunch of old map files in a recent version of Accumulo 
and then to try to force a deepCopy in the iterator stack with this reader 
active. Using the DefaultIteratorEnvironment implementation may be perfectly 
acceptable in all cases. I'm not sure if there are any pitfalls to be aware of 
because of the TabletIteratorEnvironment's implementation no longer being used. 
(And it's not possible to use that without a much bigger refactor that moves 
this class from the core module to the server module, or by doing a bunch of 
reflection to try to use the implementation from the server code.)


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