Envs.java:36: Rename Envelopes considering their types. #16
Description
The puzzle DEV-2f3418a3 from #DEV has to be resolved:
The puzzle was created by Yurii Dubinka on 03-Feb-19.
If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.