/*

 * Copyright (c) 2019, 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.

 *

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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

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 */

import java.util.concurrent.BlockingQueue;

import java.util.concurrent.SynchronousQueue;

public class MethodSortingApp {

    static class HelloA {

        String aaaa() { return "aaaa"; }

        String bbbb() { return "bbbb"; }

        String dddd() { return "dddd"; }

        String eeee() { return "eeee"; }

        String gggg() { return "gggg"; }

    }

    static class HelloA1 extends HelloA {

        String aaaa() { return "aaa-"; }

        String dddd() { return "ddd-"; }

        String gggg() { return "ggg-"; }

    }

    static class HelloB {

        String aaaa() { return "aaaa"; }

        String cccc() { return "cccc"; }

        String dddd() { return "dddd"; }

        String ffff() { return "ffff"; }

        String gggg() { return "gggg"; }

    }

    static class HelloB1 extends HelloB {

        String aaaa() { return "aaa-"; }

        String dddd() { return "ddd-"; }

        String gggg() { return "ggg-"; }

    }

    // Default methods in interfaces must be sorted

    static interface InterfaceA {

        default public String aaa() { return "aaa";}

        default public String bbb() { return "bbb";}

        default public String ddd() { return "ddd";}

        default public String eee() { return "eee";}

        default public String ggg() { return "ggg";}

    }

    static class ImplementorA implements InterfaceA {

        public String aaa() { return "aa-";}

    }

    static class ImplementorA1 extends ImplementorA {

        public String bbb() { return "bb-";}

    }

    static interface InterfaceB {

        default public String aaa() { return "aaa"; }

        default public String ccc() { return "ccc"; }

        default public String ddd() { return "ddd"; }

        default public String fff() { return "fff"; }

        default public String ggg() { return "ggg"; }

    }

    static class ImplementorB implements InterfaceB {

        public String ggg() { return "gg-";}

    }

    static class ImplementorB1 extends ImplementorB {

        public String fff() { return "ff-";}

    }

    public static void main(String args[]) {

        testSimpleMethods();

        testDefaultMethods();

        testMixedInterfaces();

    }

    static void testSimpleMethods() {

        // When HelloA and HelloB are copied into the dynamic archive, the Symbols

        // for their method's names will have a different sorting order. This requires

        // that the dumped InstanceKlass to re-sort their "methods" array and re-layout

        // the vtables/itables.

        HelloA1 a1 = new HelloA1();

        HelloA a = new HelloA();

        assertEqual(a.aaaa(), "aaaa");

        assertEqual(a.bbbb(), "bbbb");

        assertEqual(a.dddd(), "dddd");

        assertEqual(a.eeee(), "eeee");

        assertEqual(a.gggg(), "gggg");

        assertEqual(a1.aaaa(), "aaa-");

        assertEqual(a1.bbbb(), "bbbb");

        assertEqual(a1.dddd(), "ddd-");

        assertEqual(a1.eeee(), "eeee");

        assertEqual(a1.gggg(), "ggg-");

        HelloB b = new HelloB();

        assertEqual(b.aaaa(), "aaaa");

        assertEqual(b.cccc(), "cccc");

        assertEqual(b.dddd(), "dddd");

        assertEqual(b.ffff(), "ffff");

        assertEqual(b.gggg(), "gggg");

        HelloB b1 = new HelloB1();

        assertEqual(b1.aaaa(), "aaa-");

        assertEqual(b1.cccc(), "cccc");

        assertEqual(b1.dddd(), "ddd-");

        assertEqual(b1.ffff(), "ffff");

        assertEqual(b1.gggg(), "ggg-");

    }

    static void testDefaultMethods() {

        InterfaceA a1 = new ImplementorA1();

        InterfaceA a = new ImplementorA();

        assertEqual(a.aaa(), "aa-");

        assertEqual(a.bbb(), "bbb");

        assertEqual(a.ddd(), "ddd");

        assertEqual(a.eee(), "eee");

        assertEqual(a.ggg(), "ggg");

        assertEqual(a1.aaa(), "aa-");

        assertEqual(a1.bbb(), "bb-");

        assertEqual(a1.ddd(), "ddd");

        assertEqual(a1.eee(), "eee");

        assertEqual(a1.ggg(), "ggg");

        InterfaceB b = new ImplementorB();

        InterfaceB b1 = new ImplementorB1();

        assertEqual(b.aaa(), "aaa");

        assertEqual(b.ccc(), "ccc");

        assertEqual(b.ddd(), "ddd");

        assertEqual(b.fff(), "fff");

        assertEqual(b.ggg(), "gg-");

        assertEqual(b1.aaa(), "aaa");

        assertEqual(b1.ccc(), "ccc");

        assertEqual(b1.ddd(), "ddd");

        assertEqual(b1.fff(), "ff-");

        assertEqual(b1.ggg(), "gg-");

    }

    // This is a regression test for an earlier bug in

    // DynamicArchiveBuilder::relocate_buffer_to_target()

    static void testMixedInterfaces() {

        Object xx = new SynchronousQueue();

        BlockingQueue yy = (BlockingQueue)xx;

    }

    static private void assertEqual(String a, String b) {

        if (!a.equals(b)) {

            throw new RuntimeException(a + " is not equal to " + b);

        } else {

            System.out.println("Expected: " + a + ", got: " + b);

        }

    }

}