/*

 * 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.

 */

/*

 * @bug 4765255

 * @summary Verify proper functioning of package equality checks used to

 *          determine accessibility of superclass constructor and inherited

 *          writeReplace/readResolve methods.

 */

import java.io.*;

import java.net.*;

public class Test {

    static Class bcl;

    static Class dcl;

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

        ClassLoader ldr =

            new URLClassLoader(new URL[]{ new URL("file:foo.jar") },

                               Test.class.getClassLoader());

        bcl = Class.forName("B", true, ldr);

        dcl = Class.forName("D", true, ldr);

        Object b = bcl.newInstance();

        try {

            swizzle(b);

            throw new Error("expected InvalidClassException for class B");

        } catch (InvalidClassException e) {

            System.out.println("caught " + e);

            e.printStackTrace();

        }

        if (A.packagePrivateConstructorInvoked) {

            throw new Error("package private constructor of A invoked");

        }

        Object d = dcl.newInstance();

        swizzle(d);

    }

    static void swizzle(Object obj) throws Exception {

        ByteArrayOutputStream bout = new ByteArrayOutputStream();

        ObjectOutputStream oout = new ObjectOutputStream(bout);

        oout.writeObject(obj);

        oout.close();

        ByteArrayInputStream bin =

            new ByteArrayInputStream(bout.toByteArray());

        new TestObjectInputStream(bin).readObject();

    }

}

class TestObjectInputStream extends ObjectInputStream {

    TestObjectInputStream(InputStream in) throws IOException {

        super(in);

    }

    protected Class resolveClass(ObjectStreamClass desc)

        throws IOException, ClassNotFoundException

    {

        String n = desc.getName();

        if (n.equals("B")) {

            return Test.bcl;

        } else if (n.equals("D")) {

            return Test.dcl;

        } else {

            return super.resolveClass(desc);

        }

    }

}