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12  * version 2 for more details (a copy is included in the LICENSE file that
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23 
24 /*
25  * @test
26  * @bug 6298888 6992705
27  * @summary Check Class.toGenericString()
28  * @author Joseph D. Darcy
29  */
30 
31 import java.lang.reflect.*;
32 import java.lang.annotation.*;
33 import java.util.*;
34 
35 @ExpectedGenericString("public class GenericStringTest")
36 public class GenericStringTest {
main(String... args)37     public static void main(String... args){
38         int failures = 0;
39 
40         failures += checkToGenericString(int.class, "int");
41 
42         Class<?>[] types = {
43             GenericStringTest.class,
44             AnInterface.class,
45             LocalMap.class,
46             AnEnum.class,
47             AnotherEnum.class,
48         };
49 
50         for(Class<?> clazz : types) {
51             failures += checkToGenericString(clazz, clazz.getAnnotation(ExpectedGenericString.class).value());
52         }
53 
54         if (failures > 0) {
55             throw new RuntimeException();
56         }
57     }
58 
checkToGenericString(Class<?> clazz, String expected)59     private static int checkToGenericString(Class<?> clazz, String expected) {
60         String genericString = clazz.toGenericString();
61         if (!genericString.equals(expected)) {
62             System.err.printf("Unexpected Class.toGenericString output; expected '%s', got '%s'.%n",
63                               expected,
64                               genericString);
65             return 1;
66         } else
67             return 0;
68     }
69 }
70 
71 @Retention(RetentionPolicy.RUNTIME)
72 @interface ExpectedGenericString {
value()73     String value();
74 }
75 
76 @ExpectedGenericString("abstract interface AnInterface")
77 strictfp interface AnInterface {}
78 
79 @ExpectedGenericString("abstract interface LocalMap<K,V>")
80 interface LocalMap<K,V> {}
81 
82 @ExpectedGenericString("final enum AnEnum")
83 enum AnEnum {
84     FOO;
85 }
86 
87 @ExpectedGenericString("enum AnotherEnum")
88 enum AnotherEnum {
89     BAR{};
90 }
91