/* * Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */ /* @test * @bug 4838379 * @summary Verify that serialVersionUID and serialPersistentFields * declarations made by enum types and constants are ignored. */ import java.io.*; import java.util.Arrays; enum Foo { foo, bar { private static final long serialVersionUID = 2L; // bar is implemented as an inner class instance, so the following // declaration would cause a compile-time error // private static final ObjectStreamField[] serialPersistentFields = { // new ObjectStreamField("gub", Float.TYPE) // }; }; private static final long serialVersionUID = 1L; private static final ObjectStreamField[] serialPersistentFields = { new ObjectStreamField("blargh", Integer.TYPE) }; } public class Test { public static void main(String[] args) throws Exception { Class[] classes = { Foo.class, Foo.foo.getClass(), Foo.bar.getClass() }; for (int i = 0; i < classes.length; i++) { ObjectStreamClass desc = ObjectStreamClass.lookup(classes[i]); if (desc.getSerialVersionUID() != 0L) { throw new Error( classes[i] + " has non-zero serialVersionUID: " + desc.getSerialVersionUID()); } ObjectStreamField[] fields = desc.getFields(); if (fields.length > 0) { throw new Error( classes[i] + " has non-empty list of fields: " + Arrays.asList(fields)); } } } }