/* * Copyright (c) 1999, 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 * @bug 4174797 * @summary Ensure that ObjectInputStream can set final fields. */ import java.io.*; class Foo implements Serializable { final int i; Foo(int i) { this.i = i; } public boolean equals(Object obj) { if (! (obj instanceof Foo)) return false; Foo f = (Foo) obj; return (i == f.i); } } public class FinalFields { public static void main(String[] args) throws Exception { ByteArrayOutputStream bout; ByteArrayInputStream bin; ObjectOutputStream oout; ObjectInputStream oin; Foo f1, f2, f1copy, f2copy; bout = new ByteArrayOutputStream(); oout = new ObjectOutputStream(bout); f1 = new Foo(1); f2 = new Foo(2); oout.writeObject(f1); oout.writeObject(f2); oout.flush(); bin = new ByteArrayInputStream(bout.toByteArray()); oin = new ObjectInputStream(bin); f1copy = (Foo) oin.readObject(); f2copy = (Foo) oin.readObject(); if (! (f1.equals(f1copy) && f2.equals(f2copy))) throw new Error("copies don't match originals"); } }