1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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
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22  */
23 
24 /*
25  * @test
26  * @bug 5033583 6316717 6470106 8161500 8162539 6304578
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 {
main(String argv[])36     public static void main(String argv[]) throws Exception{
37         int failures = 0;
38 
39         for(Class<?> clazz: List.of(TestClass1.class, TestClass2.class))
40             for(Constructor<?> ctor: clazz.getDeclaredConstructors()) {
41                 ExpectedGenericString egs = ctor.getAnnotation(ExpectedGenericString.class);
42                 String actual = ctor.toGenericString();
43                 System.out.println(actual);
44                 failures += checkForFailure(egs.value(), actual);
45 
46                 if (ctor.isAnnotationPresent(ExpectedString.class)) {
47                     failures += checkForFailure(ctor.getAnnotation(ExpectedString.class).value(),
48                                                 ctor.toString());
49                 }
50             }
51 
52         if (failures > 0) {
53             System.err.println("Test failed.");
54             throw new RuntimeException();
55         }
56     }
57 
checkForFailure(String expected, String actual)58     private static int checkForFailure(String expected, String actual) {
59         if (!expected.equals(actual)) {
60             System.err.printf("ERROR: Expected ''%s'';%ngot             ''%s''.\n",
61                               expected, actual);
62             return 1;
63         } else
64             return 0;
65     }
66 }
67 
68 class TestClass1 {
69     @ExpectedGenericString(
70    "TestClass1(int,double)")
TestClass1(int x, double y)71     TestClass1(int x, double y) {}
72 
73     @ExpectedGenericString(
74    "private TestClass1(int,int)")
TestClass1(int x, int param2)75     private TestClass1(int x, int param2) {}
76 
77     @ExpectedGenericString(
78    "private TestClass1(java.lang.Object) throws java.lang.RuntimeException")
79     @ExpectedString(
80    "private TestClass1(java.lang.Object) throws java.lang.RuntimeException")
TestClass1(Object o)81     private TestClass1(Object o) throws RuntimeException {}
82 
83     @ExpectedGenericString(
84    "protected <S,T> TestClass1(S,T) throws java.lang.Exception")
85     @ExpectedString(
86    "protected TestClass1(java.lang.Object,java.lang.Object) throws java.lang.Exception")
TestClass1(S s, T t)87     protected <S, T> TestClass1(S s, T t) throws Exception{}
88 
89     @ExpectedGenericString(
90    "protected <V extends java.lang.Number & java.lang.Runnable> TestClass1(V)")
91     @ExpectedString(
92    "protected TestClass1(java.lang.Number)")
TestClass1(V v)93     protected <V extends Number & Runnable> TestClass1(V v){}
94 
95     @ExpectedGenericString(
96    "<E extends java.lang.Exception> TestClass1() throws E")
97     @ExpectedString(
98    "TestClass1() throws java.lang.Exception")
TestClass1()99     <E extends Exception> TestClass1() throws E {}
100 
101     @ExpectedGenericString(
102    "TestClass1(java.lang.Object...)")
103     @ExpectedString(
104    "TestClass1(java.lang.Object[])")
TestClass1(Object... o)105     TestClass1(Object... o){}
106 }
107 
108 class TestClass2<E> {
109     @ExpectedGenericString(
110    "public <T> TestClass2(E,T)")
TestClass2(E e, T t)111     public <T> TestClass2(E e, T t) {}
112 }
113 
114 @Retention(RetentionPolicy.RUNTIME)
115 @interface ExpectedGenericString {
value()116     String value();
117 }
118 
119 @Retention(RetentionPolicy.RUNTIME)
120 @interface ExpectedString {
value()121     String value();
122 }
123