/*

 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.

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

 *

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 * 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

 * @library /test/lib

 * @summary Proof of concept test for RedefineClassHelper

 * @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 RedefineClassTest

 */

import static jdk.test.lib.Asserts.*;

/*

 * Proof of concept test for the test utility class RedefineClassHelper

 */

// package access top-level class to avoid problem with RedefineClassHelper

// and nested types.

class RedefineClassTest_A {

    public int Method() {

        return 1;

    }

}

public class RedefineClassTest {

    public static String newClass = "class RedefineClassTest_A { public int Method() { return 2; } }";

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

        RedefineClassTest_A a = new RedefineClassTest_A();

        assertTrue(a.Method() == 1);

        RedefineClassHelper.redefineClass(RedefineClassTest_A.class, newClass);

        assertTrue(a.Method() == 2);

    }

}