So, we are trying to write library in java which will make it easier to work with images, etc. It's something like university project, so we have 15 people in our team.
We don't want anyone to have power to remove his code from our library after we end our project. Let's say Peter wrote 7 classes, but something happens and he wants to remove his contributions from our library and because it's his 7 classes we have to do it.
Which license would prevent such things? Maybe it's Apache License 2.0 or GPL? Sorry for bad english.