/*

 * Copyright (c) 2018, 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.

 */

/*

 * @test

 * @bug 4185411

 * @summary This program crashes in 1.1, but runs okay in 1.2.

 * @run main/othervm -Xss512k ReflectStackOverflow

 */

import java.lang.reflect.*;

public class ReflectStackOverflow {

    private static final int COUNT = 11000;

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

        for (int i = 0; i < COUNT+1; i++) {

            stuff(i);

        }

    }

    private static void stuff(int count) throws Throwable {

        if (count < COUNT)

            return;  // don't do anything the first COUNT times.

        try {

            final Method method =

                Method.class.getMethod

                ("invoke", new Class[] { Object.class, Object[].class });

            final Object[] args = new Object[] { method, null };

            args[1] = args;

            method.invoke(method, args); // "recursive reflection"

            // exception should have been thrown by now...

            System.out.println("how did I get here?");

        } catch(Throwable t) {

            int layers;

            for(layers = 0; t instanceof InvocationTargetException; layers++)

                t = ((InvocationTargetException)t).getTargetException();

            System.err.println("Found " + layers + " layers of wrappers.");

            if (!(t instanceof StackOverflowError)) {

                throw t;

            }

        }

    }

}