Github user danielsun1106 commented on the pull request:
https://github.com/apache/groovy/commit/9699e99483b8f53e4a77762225343a86ee3c4783#commitcomment-27637860
In src/main/java/org/apache/groovy/util/Maps.java:
In src/main/java/org/apache/groovy/util/Maps.java on line 5802:
Both `inverse` method of Guava's `BiMap` and `inverseBidiMap` method of
commons-collections' `BidiMap` return the view of inverse map, so I think it's
better to return the view too.---
