Decorates a Collection to validate that elements added are of a specific type.
The validation of additions is performed via an instanceof test against
a specified Class. If an object cannot be added to the
collection, an IllegalArgumentException is thrown.
Collectionto validate that elements added are of a specific type.The validation of additions is performed via an instanceof test against a specified
Class. If an object cannot be added to the collection, an IllegalArgumentException is thrown.