Interface com.google.common.util.concurrent.ClosingFuture.Combiner2.ClosingFunction2

Changed Methods
U extends Object apply(DeferredCloser, V1, extends, Object, V2, extends, Object)	Change in return type from U to (U extends Object). Change in signature from (DeferredCloser, V1, V2) to (DeferredCloser, V1 extends Object, V2 extends Object).	Applies this function to two inputs, or throws an exception if unable to do so.