T6650759j.java

/*
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @bug     6650759
 * @summary Inference of formal type parameter (unused in formal parameters) is not performed
 * @compile T6650759j.java
 */

public class T6650759j {

    static abstract class A<X extends A<X>> {}

    static abstract class B<X extends B<X, Y>, Y> extends A<X> {}

    static abstract class C<X extends C<X, Y>, Y> extends B<X, Y> {}

    interface D {}

    static class E extends C<E, D> {}

    static abstract class F<X extends F<X, Y>, Y extends A<Y>> extends A<X> {}

    static class G extends F<G, E> {}

    static <X extends F<X, Y>, Y extends A<Y>> X m(Iterable<X> it) {
        return null;
    }

    static G test(Iterable<G> c) {
        return m(c);
    }
}