ghillert/spring-integration — comment on commit a96c288124f34530fa8858eb054301f665f1dad4
File:  line 0
By ghillert:

We have been debating about that and may possibly stop checking them in eventually. On the other side though, it is a convenience for users that may not be familiar with Gradle or have a preference for Maven. Thus, the goal is to keep the barrier of entry as low as possible. With the checked in poms, a user can directly import Spring Integration into Eclipse without having to use the command line first.