Quelle TestEntry.java Sprache: JAVA

/*
* Copyright (c) 1998, 2017, 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.
*/

/*
* @bug 4075221
* @summary Enable serialize of nonSerializable Class descriptor.
*/

import java.io.EOFException;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.InvalidClassException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;

class TestEntry {
    public static void main(String args[]) throws Exception {
        File f = new File("tmp.ser");
        if (args[0].compareTo("-s") == 0) {
            FileOutputStream of = new FileOutputStream(f);
            ObjectOutputStream oos = new ObjectOutputStream(of);
            Class cl = Class.forName(args[1]);
            oos.writeObject(cl);
            if (ObjectStreamClass.lookup(cl) != null)
                oos.writeObject(cl.newInstance());
            oos.close();
            System.out.println("Serialized Class " + cl.getName());
        } else if (args[0].compareTo("-de") == 0) {
            FileInputStream inf = new FileInputStream(f);
            ObjectInputStream ois = new ObjectInputStream(inf);
            Class cl = null;
            try {
                cl = (Class)ois.readObject();
                throw new Error("Expected InvalidClassException to be thrown");
            } catch (InvalidClassException e) {
                System.out.println("Caught expected exception DeSerializing class " + e.getMessage());
            }
            ois.close();
        } else if (args[0].compareTo("-doe") == 0) {
            FileInputStream inf = new FileInputStream(f);
            ObjectInputStream ois = new ObjectInputStream(inf);
            Class cl = null;
            cl = (Class)ois.readObject();
            try {
                ois.readObject();
                throw new Error("Expected InvalidClassException to be thrown");
            } catch (InvalidClassException e) {
                System.out.println("Caught expected exception DeSerializing class " + e.getMessage());
            }
            ois.close();
        } else if (args[0].compareTo("-d") == 0) {
            FileInputStream inf = new FileInputStream(f);
            ObjectInputStream ois = new ObjectInputStream(inf);
            Class cl = (Class)ois.readObject();
            try {
                ois.readObject();
            } catch (EOFException e) {
            }
            ois.close();
            System.out.println("DeSerialized Class " + cl.getName());
        } else {
            throw new RuntimeException("Unrecognized argument");
        }
    }
}

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