1 /* 2 * Copyright (c) 2003, 2004, 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 /* 25 * @test 26 * @bug 4891872 4989735 4990789 5020490 27 * @summary Check isEnum() method 28 * @author Joseph D. Darcy 29 */ 30 31 import java.lang.annotation.*; 32 33 public class IsEnum { 34 test(Class<?> clazz, boolean expected)35 static int test(Class<?> clazz, boolean expected) { 36 int status = (clazz.isEnum() == expected) ? 0 : 1; 37 38 if (status == 1) { 39 System.err.println("Unexpected enum status for " + clazz); 40 } 41 return status; 42 } 43 main(String... argv)44 public static void main(String... argv) { 45 int failures = 0; 46 47 failures += test(IsEnum.class, false); 48 failures += test(String.class, false); 49 failures += test(Enum.class, false); 50 failures += test(EnumPoseur.class, false); 51 failures += test(java.math.RoundingMode.class, true); 52 53 // Classes in java.lang.annotation 54 failures += test(Annotation.class, false); 55 failures += test(ElementType.class, true); 56 failures += test(Retention.class, false); 57 failures += test(RetentionPolicy.class, true); 58 failures += test(Target.class, false); 59 60 // A class for a specialized enum constant isn't itself an enum 61 failures += test(SpecialEnum.class, true); 62 failures += test(SpecialEnum.RED.getClass(), false); 63 failures += test(SpecialEnum.GREEN.getClass(), true); 64 65 if (failures > 0) { 66 throw new RuntimeException("Unexepcted enum status detected."); 67 } 68 } 69 } 70 71 enum SpecialEnum { 72 RED { special()73 String special() {return "riding hood";} 74 }, 75 76 GREEN; 77 special()78 String special() {return "how was my valley";} 79 } 80