test/java/io/Serializable/fieldTypeString/Read.java

/*
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 * 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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 */

/*
 * @bug 4404696
 * @summary Verify that serialization does not require matching type strings
 *          for non-primitive fields.
 *
 * NOTE: This test should be removed if it is determined that serialization
 * *should* consider type strings when matching non-primitive fields.
 */

import java.io.*;

class Foo implements Serializable {
    private static final long serialVersionUID = 0L;
    String obj;         // writer defines this field as type Object
}

class Bar implements Serializable {
    private static final long serialVersionUID = 0L;
    short q;            // writer defines this field as type int
}

public class Read {
    public static void main(String[] args) throws Exception {
        ObjectInputStream oin =
            new ObjectInputStream(new FileInputStream("foo.ser"));
        Foo foo = (Foo) oin.readObject();
        if (! foo.obj.equals("foo")) {
            throw new Error();
        }
        try {
            oin.readObject();
            throw new Error();
        } catch (ClassCastException ex) {
        }

        oin = new ObjectInputStream(new FileInputStream("bar.ser"));
        try {
            oin.readObject();
            throw new Error();
        } catch (InvalidClassException ex) {
        }
    }
}