/*

 * 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.

 *

 * 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 7194897

 * @summary JSR 292: Cannot create more than 16 instances of an anonymous class

 * @author  Robert Field

 * @library /lib/testlibrary

 * @compile -XDignore.symbol.file ManyNewInstanceAnonTest.java

 * @run main ClassFileInstaller ManyNewInstanceAnonTest

 * @run main/othervm -Xbootclasspath/a:. -Xverify:all ManyNewInstanceAnonTest

 */

import java.io.ByteArrayOutputStream;

import java.io.InputStream;

import sun.misc.Unsafe;

public class ManyNewInstanceAnonTest {

    static final int REPS = 20;

    static final Class<?> klass = ManyNewInstanceAnonTest.class;

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

        Class<?> c = Unsafe.getUnsafe().defineAnonymousClass(klass, readClassFile(), null);

        for (int i = 0; i < REPS; ++i) {

            System.out.printf("%d: %s\n", i, c.newInstance());

        }

        System.out.println("Passed.");

    }

    private static byte[] readClassFile() throws Exception {

        try (InputStream in = klass.getResourceAsStream(klass.getSimpleName() + ".class");

             ByteArrayOutputStream out = new ByteArrayOutputStream())

        {

            int b;

            while ((b = in.read()) != -1) {

                out.write(b);

            }

            return out.toByteArray();

        }

    }

}