/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

/*

 * @test

 * @bug 8074803

 * @summary Incorrect name clash error

 *

 * @compile NameClashTest.java

 */

public class NameClashTest {

    String log = "";

    interface A1 {

        A1 m(String s);

    }

    abstract class A2 implements A1 {

        public abstract A2 m(String s);

    }

    interface B1 {

        A1 m(String s);

    }

    interface B2 extends B1 {

        A2 m(String s);

    }

    abstract class C extends A2 implements B2 {}

    class D extends C {

        public A2 m(String s) {

            log += s;

            return null;

        }

    }

    public static void main(String[] args) {

        NameClashTest nct = new NameClashTest();

        A1 a1 = nct.new D();

        a1.m("A1.m ");

        A2 a2 = nct.new D();

        a2.m("A2.m ");

        B1 b1 = nct.new D();

        b1.m("B1.m ");

        B2 b2 = nct.new D();

        b2.m("B2.m ");

        C c = nct.new D();

        c.m("C.m ");

        D d = nct.new D();

        d.m("D.m ");

        if (!nct.log.equals("A1.m A2.m B1.m B2.m C.m D.m "))

            throw new AssertionError("unexpected output: " + nct.log);

    }

}