1 /*
   2  * Copyright 2004-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 5033583 6316717 6470106
  27  * @summary Check toGenericString() and toString() methods
  28  * @author Joseph D. Darcy
  29  */
  30 
  31 import java.lang.reflect.*;
  32 import java.lang.annotation.*;
  33 import java.util.*;
  34 
  35 public class GenericStringTest {
  36     public static void main(String argv[]) throws Exception {
  37         int failures = 0;
  38         List<Class<?>> classList = new LinkedList<Class<?>>();
  39         classList.add(TestClass1.class);
  40         classList.add(TestClass2.class);
  41         classList.add(Roebling.class);
  42 
  43 
  44         for(Class<?> clazz: classList)
  45             for(Method method: clazz.getDeclaredMethods()) {
  46                 ExpectedGenericString egs = method.getAnnotation(ExpectedGenericString.class);
  47                 if (egs != null) {
  48                     String actual = method.toGenericString();
  49                     System.out.println(actual);
  50                     if (! egs.value().equals(actual)) {
  51                         failures++;
  52                         System.err.printf("ERROR: Expected ''%s''; got ''%s''.\n",
  53                                           egs.value(), actual);
  54                     }
  55                 }
  56 
  57                 if (method.isAnnotationPresent(ExpectedString.class)) {
  58                     ExpectedString es = method.getAnnotation(ExpectedString.class);
  59                     String actual = method.toString();
  60                     if (! es.value().equals(actual)) {
  61                         failures++;
  62                         System.err.printf("ERROR: Expected ''%s''; got ''%s''.\n",
  63                                           es.value(), actual);
  64                     }
  65                 }
  66 
  67             }
  68 
  69         // Bridge Test; no "volatile" methods
  70         for(Method method: Roebling.class.getDeclaredMethods()) {
  71             String s1 = method.toGenericString();
  72             String s2 = method.toString();
  73             System.out.println("Generic: " + s1);
  74             System.out.println("Regular: " + s2);
  75             if (s1.indexOf("volatile") != -1 ||
  76                 s2.indexOf("volatile") != -1) {
  77                 failures++;
  78                 System.err.println("ERROR: Bad string; unexpected  ``volatile''");
  79             }
  80         }
  81 
  82         if (failures > 0) {
  83             System.err.println("Test failed.");
  84             throw new RuntimeException();
  85         }
  86     }
  87 }
  88 
  89 class TestClass1 {
  90     @ExpectedGenericString(
  91    "void TestClass1.method1(int,double)")
  92     void method1(int x, double y) {}
  93 
  94     @ExpectedGenericString(
  95    "private static java.lang.String TestClass1.method2(int,int)")
  96     private static String method2(int x, int param2) {return null;}
  97 
  98     @ExpectedGenericString(
  99    "static void TestClass1.method3() throws java.lang.RuntimeException")
 100     static void method3() throws RuntimeException {return;}
 101 
 102     @ExpectedGenericString(
 103    "protected <S,T> S TestClass1.method4(S,T) throws java.lang.Exception")
 104     protected <S, T> S method4(S s, T t) throws Exception {return null;}
 105 }
 106 
 107 class TestClass2<E, F extends Exception> {
 108     @ExpectedGenericString(
 109    "public <T> T TestClass2.method1(E,T)")
 110     public <T> T method1(E e, T t) {return null;}
 111 
 112     @ExpectedGenericString(
 113    "public void TestClass2.method2() throws F")
 114     public void method2() throws F {return;}
 115 }
 116 
 117 class Roebling implements Comparable<Roebling> {
 118     @ExpectedGenericString(
 119    "public int Roebling.compareTo(Roebling)")
 120     public int compareTo(Roebling r) {
 121         throw new IllegalArgumentException();
 122     }
 123 
 124     // Not a transient method, (transient var-arg overlap)
 125     @ExpectedGenericString(
 126    "void Roebling.varArg(java.lang.Object...)")
 127     @ExpectedString(
 128    "void Roebling.varArg(java.lang.Object[])")
 129     void varArg(Object ... arg) {}
 130 }
 131 
 132 @Retention(RetentionPolicy.RUNTIME)
 133 @interface ExpectedGenericString {
 134     String value();
 135 }
 136 
 137 @Retention(RetentionPolicy.RUNTIME)
 138 @interface ExpectedString {
 139     String value();
 140 }