| /* |
| * Copyright (c) 2001, 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 4431318 |
| * @summary Verify that when serialVersionUID is declared with a type other |
| * than long, values that can be promoted to long will be used, and |
| * those that can't be will be ignored (but will not result in |
| * unchecked exceptions). |
| */ |
| |
| import java.io.*; |
| |
| class Z implements Serializable { |
| private static final boolean serialVersionUID = false; |
| } |
| |
| class B implements Serializable { |
| private static final byte serialVersionUID = 5; |
| } |
| |
| class C implements Serializable { |
| private static final char serialVersionUID = 5; |
| } |
| |
| class S implements Serializable { |
| private static final short serialVersionUID = 5; |
| } |
| |
| class I implements Serializable { |
| private static final int serialVersionUID = 5; |
| } |
| |
| class F implements Serializable { |
| private static final float serialVersionUID = 5.0F; |
| } |
| |
| class D implements Serializable { |
| private static final double serialVersionUID = 5.0; |
| } |
| |
| class L implements Serializable { |
| private static final Object serialVersionUID = "5"; |
| } |
| |
| |
| public class BadSerialVersionUID { |
| public static void main(String[] args) throws Exception { |
| Class[] ignore = { Z.class, F.class, D.class, L.class }; |
| Class[] convert = { B.class, C.class, S.class, I.class }; |
| |
| for (int i = 0; i < ignore.length; i++) { |
| ObjectStreamClass.lookup(ignore[i]).getSerialVersionUID(); |
| } |
| for (int i = 0; i < convert.length; i++) { |
| ObjectStreamClass desc = ObjectStreamClass.lookup(convert[i]); |
| if (desc.getSerialVersionUID() != 5L) { |
| throw new Error(); |
| } |
| } |
| } |
| } |