Hello, I'm creating this thread in order to discuss issue COLLECTIONS-551.
I don't know the deprecation policies of the Commons project in detail, but based on the last comment posted by Thomas on issue COLLECTIONS-550 I assume that: In the next release (4.1): - Methods using Iterables in CollectionUtils should be replicated into IterableUtils; - Methods in CollectionUtils should be transformed into delegates to the ones copied to IterableUtils; - Methods in CollectionUtils should be marked as @Depreated. In release 5: - Methods in CollectionUtils shall be removed. IMO the Unit Tests related with these methods should be copied into IterableUtilsTest, but should also be kept in CollectionUtilsTest until version 5. This way we also guarantee that the delegates in CollectionUtils don't break in 4.1. If this is correct, and if you think I may be useful here, I'm available to take this issue. Let me know your thoughts. Gonçalo