class B004_1<T>{}class B004_2 <T extends java.lang.Number> { } class B004_3< A,B > { } class B004_4<A extends java.util.List<String>&java.util.RandomAccess> { } class B004_5<A extends java.util.List<?>> { } class B004_6<T, A extends java.util.List<?extends T>> { }