Java example source code file (CheckingEquality.java)

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Java - Java tags/keywords

error, exception, failed, fileinputstream, fileoutputstream, firstpsio, ioexception, objectinputstream, objectoutputstream, secondpsio, streamcorruptedexception, string, superclass, thirdpsio

The CheckingEquality.java Java example source code

/*
 * Copyright (c) 2005, 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
 * @summary it is new version of old test which was
 *          /src/share/test/serialization/psiotest.java
 *          Test pickling and unpickling an object with derived classes
 *          and using a read special to serialize the "middle" class.
 *
 */

import java.io.*;

public class CheckingEquality {
    public static void main (String argv[]) {
        System.err.println("\nRegression test of " +
                           "serialization/deserialization of " +
                           "complex objects\n");

        FileInputStream istream = null;
        try {

            Thirdpsio objout = new Thirdpsio();
            objout.init();

            FileOutputStream ostream = new FileOutputStream("psiotest1.tmp");
            ObjectOutputStream p = new ObjectOutputStream(ostream);

            p.writeObject(objout);

            p.flush();
            ostream.close();

            istream = new FileInputStream("psiotest1.tmp");
            ObjectInputStream q = new ObjectInputStream(istream);

            Thirdpsio objin = (Thirdpsio)q.readObject();

            if (!objout.equals(objin)) {
                System.err.println(
                    "\nTEST FAILED: Original and read objects not equal.");
                throw new Error();
            }
            istream.close();
            System.err.println("\nTEST PASSED");
        } catch (Exception e) {
            System.err.print("TEST FAILED: ");
            e.printStackTrace();

            System.err.println("\nInput remaining");
            int ch;
            try {
                while ((ch = istream.read()) != -1) {
                    System.out.print(Integer.toString(ch, 16) + " ");
                }
                System.err.println("\n");
            } catch (Exception f) {
                throw new Error();
            }
            throw new Error();
        }
    }
}

class Firstpsio implements java.io.Serializable {
    String one;
    int two;
    float three[];

    void init() { /* called only before writing */
        one = "one";
        two = 2;
        three = new float[5];
        float f = 3.0f;
        for (int i=0; i<5 ; i++) {
            f += 0.11;
            three[i] = f;
        }
    }

    /* Compare two first objects */
    boolean equals(Firstpsio other) {
        boolean ret = true;

        if (!one.equals(other.one)) {
            System.err.println("\nfirstpsio: expected " + one +
                " actual " + other.one);
            ret = false;
        }
        if (two != other.two) {
            System.err.println("\nfirstpsio: expected " + two +
                " actual " + other.two);
            ret = false;
        }

        for (int i = 0; i < three.length; i++ ) {
            if (three[i] != other.three[i]) {
                System.err.println("\nfirstpsio: three[" + i + "] expected " +
                    three[i] + " actual " + other.three[i]);
                ret = false;
            }
        }
        return ret;
    }
}

class Secondpsio extends Firstpsio  {
    String quatre;
    int cinq;

    private void writeObject(ObjectOutputStream pw) throws IOException {
        pw.writeObject(quatre);
        pw.writeInt(cinq);
    }

    private void readObject(ObjectInputStream pr)
        throws StreamCorruptedException, IOException, ClassNotFoundException
    {
        if (one == null) {
            System.err.println(
                "\nTEST FAILED: Superclass not serialized when " +
                "it should have been");
            throw new StreamCorruptedException("Superclass not serialized " +
                                               "when it should have been");
        }

        quatre = (String)pr.readObject();
        cinq = pr.readInt();
    }

    boolean equals(Secondpsio other) {
        boolean ret = super.equals(other);

        if (!quatre.equals(other.quatre)) {
            System.err.println("\nsecondpsio: quatre expected " + quatre +
                " actual " + other.quatre);
            ret = false;
        }
        if (cinq != other.cinq) {
            System.err.println("\nsecondpsio: cinq expected " + cinq +
                " actual " + other.cinq);
            ret = false;
        }
        return ret;
    }

    /* called only before writing */
    void init() {
        quatre = "4444";
        cinq = 5;
        super.init();
    }
}

class Thirdpsio extends Secondpsio {

    static String ign = "ignored";
    transient Object oh;

    int six;

    private static int seven[];
    protected byte eight = (byte)9;
    final static byte dcare = (byte) 128;
    private short nine = 8888;
    long ten;
    java.util.Enumeration zero;


    boolean equals(Thirdpsio other) {
        boolean ret = super.equals(other);

        if (six != other.six) {
            System.err.println("\nthirdpsio six " + six +
                " actual " + other.six);
            ret = false;
        }
        if (eight != other.eight) {
            System.err.println("\nthirdpsio eight - expected " + eight +
                " actual " + other.eight);
            ret = false;
        }
        if (nine != other.nine) {
            System.err.println("\nthirdpsio nine - expected " + nine +
               " actual " + other.nine);
            ret = false;
        }
        if (ten != other.ten) {
            System.err.println("\nthirdpsio ten - expected " + ten +
                " actual " + other.ten);
            ret = false;
        }
        if (zero != other.zero) {
            System.err.println("\nthirdpsio zero - expected " + zero +
                " actual " + other.zero);
            ret = false;
        }
        return ret;
    }

    /* called only before writing */
    void init() {
        six = 666;

        int s7[] = { 7, 7, 7 };
        seven = s7;
        eight = (byte)8;
        nine = (short)9;
        ten = (long)100000;
        java.util.Enumeration em = null; /* default */

        super.init();
    }
}