As of gradle 2.10 (?) we are getting warning:
The plus(Iterable) method and using the ‘+’ operator in conjunction with an Iterable object have been deprecated and are scheduled to be removed in 3.0. Please use the plus(FileCollection) method or the ‘+’ operator with a FileCollection object instead.
//you can tweak the classpath of the Eclipse project by adding extra configurations:
plusConfigurations += [ configurations.provided ]
//you can also remove configurations from the classpath:
minusConfigurations += [ configurations.someBoringConfig ]