/*

 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

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 */

/*

 * @test

 * @bug 8081800

 * @summary Redefine private and default interface methods

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 * @modules java.compiler

 *          java.instrument

 *          jdk.jartool/sun.tools.jar

 * @run main RedefineClassHelper

 * @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class*=trace RedefineInterfaceMethods

 */

public class RedefineInterfaceMethods {

    static final int RET = -2;

    static interface B {

        int ORIGINAL_RETURN = 1;

        int NEW_RETURN = 2;

        private int privateMethod() {

            return ORIGINAL_RETURN;

        }

        public default int defaultMethod() {

            return privateMethod();

        }

    }

    public static String redefinedPrivateMethod =

        "interface RedefineInterfaceMethods$B {" +

        "    int ORIGINAL_RETURN = 1;" +

        "    int NEW_RETURN = 2;" +

        "    private int privateMethod() {" +

        "        return NEW_RETURN;" +

        "    }" +

        "    public default int defaultMethod() {" +

        "       return privateMethod();" +

        "    }" +

        "}";

    public static String redefinedDefaultMethod =

        "interface RedefineInterfaceMethods$B {" +

        "    int ORIGINAL_RETURN = 1;" +

        "    int NEW_RETURN = 2;" +

        "    private int privateMethod() {" +

        "        return ORIGINAL_RETURN;" +

        "    }" +

        "    public default int defaultMethod() {" +

        "       return RedefineInterfaceMethods.RET;" +

        "    }" +

        "}";

    static class Impl implements B {

    }

    public static void main(String[] args) throws Exception {

        Impl impl = new Impl();

        int res = impl.defaultMethod();

        if (res != B.ORIGINAL_RETURN)

            throw new Error("defaultMethod returned " + res +

                            " expected " + B.ORIGINAL_RETURN);

        RedefineClassHelper.redefineClass(B.class, redefinedPrivateMethod);

        res = impl.defaultMethod();

        if (res != B.NEW_RETURN)

            throw new Error("defaultMethod returned " + res +

                            " expected " + B.NEW_RETURN);

        System.gc();

        RedefineClassHelper.redefineClass(B.class, redefinedDefaultMethod);

        res = impl.defaultMethod();

        if (res != RET)

            throw new Error("defaultMethod returned " + res +

                            " expected " + RET);

    }

}