/*

 * Copyright (c) 2015, 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.

 *

 */

import java.lang.*;

import java.lang.reflect.*;

import jdk.test.lib.cds.CDSTestUtils;

import sun.hotspot.WhiteBox;

public class DummyClassHelper {

    static void checkDummyMethod(Class<?> cls, String className) {

        Method m = null;

        try {

            m = cls.getMethod("thisClassIsDummy");

            throw new java.lang.RuntimeException(className +

                " should be loaded from the jimage and should not have the thisClassIsDummy() method.");

        } catch(NoSuchMethodException ex) {

            System.out.println(ex.toString());

        }

    }

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

        String[] classNames = {args[0], args[1]};

        Class cls = null;

        boolean doWBCheck = (args.length == 3);

        WhiteBox wb = null;

        if (doWBCheck) {

            wb = WhiteBox.getWhiteBox();

        }

        for (int i = 0; i < classNames.length; i++) {

            cls = Class.forName(classNames[i]);

            checkDummyMethod(cls, classNames[i]);

            if (doWBCheck) {

                // FIXME: for dynamic archive, the class loaded from the

                // bootclasspath jar during dump time is not loaded from the

                // archive during run time.

                if (!CDSTestUtils.isDynamicArchive()) {

                    if (!wb.isSharedClass(cls)) {

                        throw new java.lang.RuntimeException(classNames[i] +

                            ".class should be in shared space.");

                    }

                }

            }

        }

    }

}