MethodTypeBoundTest.java revision 2933:49d207bf704d 
1/*
2 * Copyright (c) 2015, 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.
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
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8049238
27 * @summary Checks Signature attribute for type bounds.
28 * @library /tools/lib /tools/javac/lib ../lib
29 * @modules jdk.compiler/com.sun.tools.classfile
30 *          jdk.compiler/com.sun.tools.javac.api
31 *          jdk.compiler/com.sun.tools.javac.file
32 *          jdk.compiler/com.sun.tools.javac.main
33 * @build TestBase TestResult InMemoryFileManager ToolBox
34 * @build MethodTypeBoundTest Driver ExpectedSignature ExpectedSignatureContainer
35 * @run main Driver MethodTypeBoundTest
36 */
37
38import java.util.*;
39
40@ExpectedSignature(descriptor = "MethodTypeBoundTest", signature = "<T:Ljava/lang/Object;>Ljava/lang/Object;")
41public class MethodTypeBoundTest<T> {
42
43    @ExpectedSignature(descriptor = "method1(java.lang.String)",
44            signature = "<E:Ljava/lang/String;:Ljava/lang/Runnable;:Ljava/util/Collection<+TT;>;>(TE;)TE;")
45    <E extends String & Runnable & Collection<? extends T>> E method1(E a) {
46        return a;
47    }
48
49    @ExpectedSignature(descriptor = "method2(java.lang.Runnable)",
50            signature = "<E::Ljava/lang/Runnable;:Ljava/util/Collection<-TT;>;>(TE;)TE;")
51    <E extends Runnable & Collection<? super T>> E method2(E a) {
52        return a;
53    }
54
55    @ExpectedSignature(descriptor = "method3(java.util.ArrayList)",
56            signature = "<E:Ljava/util/ArrayList<+TT;>;>(TE;)TE;")
57    <E extends ArrayList<? extends T>> E method3(E a) {
58        return a;
59    }
60
61    @ExpectedSignature(descriptor = "method4(java.util.LinkedList)",
62            signature = "<E:Ljava/util/LinkedList<TE;>;:Ljava/util/List<TE;>;>(TE;)TE;")
63    <E extends LinkedList<E> & List<E>> E method4(E a) {
64        return a;
65    }
66
67    @ExpectedSignature(descriptor = "method5(java.util.Iterator)",
68            signature = "<E:Ljava/util/LinkedList<TE;>;:Ljava/util/List<TE;>;" +
69                    "U::Ljava/util/Iterator<-LMethodTypeBoundTest<TT;>.InnerClass<TE;>;>;>(TU;)TE;")
70    <E extends LinkedList<E> & List<E>, U extends Iterator<? super InnerClass<E>>> E method5(U a) {
71        return null;
72    }
73
74    @ExpectedSignature(descriptor = "method6()",
75            signature = "<E:Ljava/util/LinkedList<TT;>;U:TE;>()V")
76    <E extends LinkedList<T>, U extends E> void method6() {
77    }
78
79    @ExpectedSignature(descriptor = "MethodTypeBoundTest$InnerClass",
80            signature = "<T:Ljava/lang/Object;>Ljava/lang/Object;")
81    class InnerClass<T> {
82    }
83}
84