1/*
2 * Copyright (c) 2016, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * @test
28 * @bug 8054213
29 * @summary Check that toString method works properly for generic return type
30 * obtained via reflection
31 * @run main TestGenericReturnTypeToString
32 */
33
34import java.lang.annotation.Retention;
35import java.lang.annotation.RetentionPolicy;
36import java.lang.reflect.Method;
37import java.util.List;
38
39public class TestGenericReturnTypeToString {
40
41    public static void main(String[] args) {
42        boolean hasFailures = false;
43        for (Method method : TestGenericReturnTypeToString.class.getMethods()) {
44            if (method.isAnnotationPresent(ExpectedGenericString.class)) {
45                ExpectedGenericString es = method.getAnnotation
46                        (ExpectedGenericString.class);
47                String result = method.getGenericReturnType().toString();
48                if (!es.value().equals(result)) {
49                    hasFailures = true;
50                    System.err.println("Unexpected result of " +
51                            "getGenericReturnType().toString() " +
52                            " for " + method.getName()
53                            + " expected: " + es.value() + " actual: " + result);
54                }
55            }
56            if (hasFailures) {
57                throw new RuntimeException("Test failed");
58            }
59        }
60    }
61
62    @ExpectedGenericString("TestGenericReturnTypeToString$" +
63          "FirstInnerClassGeneric<Dummy>$SecondInnerClassGeneric<Dummy>")
64    public FirstInnerClassGeneric<Dummy>.SecondInnerClassGeneric<Dummy> foo1() {
65        return null;
66    }
67
68    @ExpectedGenericString("TestGenericReturnTypeToString$" +
69          "FirstInnerClassGeneric<Dummy>$SecondInnerClass")
70    public FirstInnerClassGeneric<Dummy>.SecondInnerClass foo2() {
71        return null;
72    }
73
74    @ExpectedGenericString("TestGenericReturnTypeToString$" +
75          "FirstInnerClass$SecondInnerClassGeneric<Dummy>")
76    public FirstInnerClass.SecondInnerClassGeneric<Dummy> foo3() {
77        return null;
78    }
79
80    @ExpectedGenericString("class TestGenericReturnTypeToString$" +
81          "FirstInnerClass$SecondInnerClass")
82    public FirstInnerClass.SecondInnerClass foo4() {
83        return null;
84    }
85
86    @ExpectedGenericString(
87          "java.util.List<java.lang.String>")
88    public java.util.List<java.lang.String> foo5() {
89        return null;
90    }
91
92    @ExpectedGenericString("interface TestGenericReturnTypeToString$" +
93          "FirstInnerClass$Interface")
94    public FirstInnerClass.Interface foo6() {
95        return null;
96    }
97
98    @ExpectedGenericString("TestGenericReturnTypeToString$" +
99          "FirstInnerClass$InterfaceGeneric<Dummy>")
100    public FirstInnerClass.InterfaceGeneric<Dummy> foo7() {
101        return null;
102    }
103
104    public static class FirstInnerClass {
105
106        public class SecondInnerClassGeneric<T> {
107        }
108
109        public class SecondInnerClass {
110        }
111
112        interface Interface {
113        }
114
115        interface InterfaceGeneric<T> {
116        }
117    }
118
119    public class FirstInnerClassGeneric<T> {
120
121        public class SecondInnerClassGeneric<T> {
122        }
123
124        public class SecondInnerClass {
125        }
126    }
127}
128
129@Retention(RetentionPolicy.RUNTIME)
130@interface ExpectedGenericString {
131    String value();
132}
133
134class Dummy {
135}
136