/*

 * Copyright (c) 2013, 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 8015436

 * @summary the IK _initial_method_idnum value must be adjusted if overpass methods are added

 * @run main Test8015436

 *

 */

/*

 * The test checks that a MemberName for the defaultMethod() is cached in

 * the class MemberNameTable without a crash in the VM fastdebug mode.

 * The original issue was that the InstanceKlass _initial_method_idnum was

 * not adjusted properly when the overpass methods are added to the class.

 * The expected/correct behavior: The test does not crash nor throw any exceptions.

 * All the invocations of the defaultMethod() must be completed successfully.

 */

import java.lang.invoke.*;

interface InterfaceWithDefaultMethod {

    public void someMethod();

    default public void defaultMethod(String str){

        System.out.println("defaultMethod() " + str);

    }

}

public class Test8015436 implements InterfaceWithDefaultMethod {

    @Override

    public void someMethod() {

        System.out.println("someMethod() invoked");

    }

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

        Test8015436 testObj = new Test8015436();

        testObj.someMethod();

        testObj.defaultMethod("invoked directly");

        MethodHandles.Lookup lookup = MethodHandles.lookup();

        MethodType   mt = MethodType.methodType(void.class, String.class);

        MethodHandle mh = lookup.findVirtual(Test8015436.class, "defaultMethod", mt);

        mh.invokeExact(testObj, "invoked via a MethodHandle");

    }

}

/*

 * A successful execution gives the output:

 *   someMethod() invoked

 *   defaultMethod() invoked directly

 *   defaultMethod() invoked via a MethodHandle

 */