/*

 * @test /nodynamiccopyright/

 * @bug 4949303

 * @summary A method returning a raw type cannot override a method returning a generic type

 * @author gafter

 *

 * @compile  UncheckedCovariance.java

 * @compile/fail/ref=UncheckedCovariance.out -XDrawDiagnostics  -Xlint:unchecked -Werror  UncheckedCovariance.java

 */

class UncheckedCovariance {

    static class Box<T> { }

    static class A {

        Box<Integer> f() { return null; }

    }

    static class B extends A {

        Box f() { return null; }

    }

}