| /* |
| * Copyright (c) 2013, 2016, 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 6298888 6992705 8161500 |
| * @summary Check Class.toGenericString() |
| * @author Joseph D. Darcy |
| */ |
| |
| import java.lang.reflect.*; |
| import java.lang.annotation.*; |
| import java.util.*; |
| |
| @ExpectedGenericString("public class GenericStringTest") |
| public class GenericStringTest { |
| public Map<String, Integer>[] mixed = null; |
| public Map<String, Integer>[][] mixed2 = null; |
| |
| public static void main(String... args) throws ReflectiveOperationException { |
| int failures = 0; |
| |
| String[][] nested = {{""}}; |
| int[][] intArray = {{1}}; |
| |
| failures += checkToGenericString(int.class, "int"); |
| failures += checkToGenericString(void.class, "void"); |
| failures += checkToGenericString(args.getClass(), "java.lang.String[]"); |
| failures += checkToGenericString(nested.getClass(), "java.lang.String[][]"); |
| failures += checkToGenericString(intArray.getClass(), "int[][]"); |
| failures += checkToGenericString(java.util.Map.class, "public abstract interface java.util.Map<K,V>"); |
| |
| Field f = GenericStringTest.class.getDeclaredField("mixed"); |
| // The expected value includes "<K,V>" rather than |
| // "<...String,...Integer>" since the Class object rather than |
| // Type objects is being queried. |
| failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[]"); |
| f = GenericStringTest.class.getDeclaredField("mixed2"); |
| failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[][]"); |
| |
| for(Class<?> clazz : List.of(GenericStringTest.class, |
| AnInterface.class, |
| LocalMap.class, |
| AnEnum.class, |
| AnotherEnum.class)) { |
| failures += checkToGenericString(clazz, clazz.getAnnotation(ExpectedGenericString.class).value()); |
| } |
| |
| if (failures > 0) { |
| throw new RuntimeException(); |
| } |
| } |
| |
| private static int checkToGenericString(Class<?> clazz, String expected) { |
| String genericString = clazz.toGenericString(); |
| if (!genericString.equals(expected)) { |
| System.err.printf("Unexpected Class.toGenericString output; expected '%s', got '%s'.%n", |
| expected, |
| genericString); |
| return 1; |
| } else |
| return 0; |
| } |
| } |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| @interface ExpectedGenericString { |
| String value(); |
| } |
| |
| @ExpectedGenericString("abstract interface AnInterface") |
| strictfp interface AnInterface {} |
| |
| @ExpectedGenericString("abstract interface LocalMap<K,V>") |
| interface LocalMap<K,V> {} |
| |
| @ExpectedGenericString("final enum AnEnum") |
| enum AnEnum { |
| FOO; |
| } |
| |
| @ExpectedGenericString("enum AnotherEnum") |
| enum AnotherEnum { |
| BAR{}; |
| } |