1/* 2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* @test 25 * @bug 4174797 26 * @summary Ensure that ObjectInputStream can set final fields. 27 */ 28 29import java.io.*; 30 31class Foo implements Serializable { 32 final int i; 33 34 Foo(int i) { 35 this.i = i; 36 } 37 38 public boolean equals(Object obj) { 39 if (! (obj instanceof Foo)) 40 return false; 41 Foo f = (Foo) obj; 42 return (i == f.i); 43 } 44} 45 46public class FinalFields { 47 public static void main(String[] args) throws Exception { 48 ByteArrayOutputStream bout; 49 ByteArrayInputStream bin; 50 ObjectOutputStream oout; 51 ObjectInputStream oin; 52 Foo f1, f2, f1copy, f2copy; 53 54 bout = new ByteArrayOutputStream(); 55 oout = new ObjectOutputStream(bout); 56 f1 = new Foo(1); 57 f2 = new Foo(2); 58 59 oout.writeObject(f1); 60 oout.writeObject(f2); 61 oout.flush(); 62 63 bin = new ByteArrayInputStream(bout.toByteArray()); 64 oin = new ObjectInputStream(bin); 65 f1copy = (Foo) oin.readObject(); 66 f2copy = (Foo) oin.readObject(); 67 68 if (! (f1.equals(f1copy) && f2.equals(f2copy))) 69 throw new Error("copies don't match originals"); 70 } 71} 72