inference/6650759/T6650759e.java

/*
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * 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 T6650759e.java
 */

import java.util.List;

public class T6650759e {

    static abstract class A<X extends B> {}

    interface B<X extends A> extends D {}

    static abstract class C<X extends D> {}

    interface D {}

    static abstract class E<X extends C<? extends B<?>>> {}

    <U extends C<V>, V extends B<W>, W extends A<V>> W m1(E<U> e) {
        return m2(e);
    }

    <U extends C<V>, V extends B<W>, W extends A<V>> W m2(E<U> e) {
        return null;
    }
}