/*

 * 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.

 *

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 */

/*

 * @test

 * @bug 4325590

 * @library /test/lib

 * @build jdk.test.lib.util.JarUtils A B

 * @run main SuperclassDataLossTest

 * @summary Verify that superclass data is not lost when incoming superclass

 *          descriptor is matched with local class that is not a superclass of

 *          the deserialized instance's class.

 */

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.InputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.io.ObjectStreamClass;

import java.net.URL;

import java.net.URLClassLoader;

import java.net.MalformedURLException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.nio.file.StandardCopyOption;

import jdk.test.lib.util.JarUtils;

class MixedSuperclassStream extends ObjectInputStream {

    private boolean ldr12A;

    private URLClassLoader ldr1;

    private URLClassLoader ldr2;

    MixedSuperclassStream(InputStream in, URLClassLoader ldr1,

            URLClassLoader ldr2, boolean ldr1First) throws IOException {

        super(in);

        this.ldr1 = ldr1;

        this.ldr2 = ldr2;

        this.ldr12A = ldr12A;

    }

        throws IOException, ClassNotFoundException

    {

        // resolve A's classdesc to class != B's superclass

        String name = desc.getName();

        if (ldr12A) {

            if (name.equals("A")) {

                return Class.forName(name, true, ldr1);

            } else if (name.equals("B")) {

                return Class.forName(name, true, ldr2);

            }

        } else {

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

                return Class.forName(name, true, ldr1);

            } else if (name.equals("A")) {

                return Class.forName(name, true, ldr2);

            }

        }

        return super.resolveClass(desc);

    }

}

public class SuperclassDataLossTest {

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

        try (URLClassLoader ldr1 = new URLClassLoader(new URL[] { new URL("file:cb1.jar") });

             URLClassLoader ldr2 = new URLClassLoader(new URL[] { new URL("file:cb2.jar") })) {

            setup();

            a.run();

            ByteArrayOutputStream bout = new ByteArrayOutputStream();

            ObjectOutputStream oout = new ObjectOutputStream(bout);

            oout.writeObject(a);

            oout.close();

            test(bout, ldr1, ldr2, true);

            test(bout, ldr1, ldr2, false);

        }

    }

    private static void test(ByteArrayOutputStream bout, URLClassLoader ldr1,

                             URLClassLoader ldr2, boolean ldr12A) throws Exception {

        ByteArrayInputStream bin =

            new ByteArrayInputStream(bout.toByteArray());

        ObjectInputStream oin = new MixedSuperclassStream(bin, ldr1, ldr2, ldr12A);

        Runnable a = (Runnable) oin.readObject();

        a.run();

    }

    private static void setup() throws Exception {

        Path classes = Paths.get(System.getProperty("test.classes", ""));

        JarUtils.createJarFile(Paths.get("cb1.jar"), classes,

                classes.resolve("A.class"), classes.resolve("B.class"));

        Files.copy(Paths.get("cb1.jar"), Paths.get("cb2.jar"),

                   StandardCopyOption.REPLACE_EXISTING);

    }

}