RepeatingTypeAnnotations.java revision 1530:8e4c22acebeb 
1/*
2 * Copyright (c) 2012, 2013, 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
24import java.lang.annotation.*;
25
26/*
27 * @test
28 * @bug 8006775
29 * @summary repeating type annotations are possible
30 * @author Werner Dietl
31 * @compile/fail/ref=RepeatingTypeAnnotations.out -XDrawDiagnostics RepeatingTypeAnnotations.java
32 */
33
34class RepeatingTypeAnnotations {
35    // Fields
36    @RTA @RTA Object fr1 = null;
37    Object fr2 = new @RTA @RTA Object();
38    // error
39    Object fs = new @TA @TA Object();
40    // error
41    Object ft = new @TA @TA Object();
42    Object fe = new @TA @TA Object();
43
44    // Local variables
45    Object foo() {
46        Object o = new @RTA @RTA Object();
47        o = new @TA @RTA @RTA Object();
48        o = new @RTA @TA @RTA Object();
49        // error
50        o = new @RTA @TA @RTA @TA Object();
51        // error
52        return new @TA @TA Object();
53    }
54
55    // Instance creation
56    Object bar() {
57        Object o = new @RTA @RTA MyList<@RTA @RTA Object>();
58        o = new @TA @RTA MyList<@TA @RTA Object>();
59        o = new @TA @RTA @RTA MyList<@RTA @TA @RTA Object>();
60        // error
61        o = new @TA @TA MyList<@RTA @RTA Object>();
62        // error
63        o = new @RTA @RTA MyList<@TA @TA Object>();
64        // error
65        return new @TA @TA MyList<@RTA @RTA Object>();
66    }
67
68    // More tests
69    void oneArg() {
70        Object o = new @RTA @RTA Object();
71        // error
72        o = new @TA @TA Object();
73        o = new @RTA @TA @RTA Object();
74
75        o = new MyList<@RTA @RTA Object>();
76        // error
77        o = new MyList<@TA @TA Object>();
78        // error
79        o = new @TA @TA MyList<@TA @TA Object>();
80        // error
81        this.<@TA @TA String>newList();
82
83        this.<@RTA @RTA MyList<@RTA @RTA String>>newList();
84        // error
85        this.<@TA @TA MyList<@TA @TA String>>newList();
86
87        o = (@RTA @RTA MyList<@RTA @RTA Object>) o;
88        // error
89        o = (@TA @TA MyList<@TA @TA Object>) o;
90
91        this.<@RTA @RTA String, @RTA @RTA Object>newMap();
92        // error
93        this.<@TA @TA String, @TA @TA Object>newMap();
94
95        this.<@RTA @RTA String @RTA @RTA []>newList();
96        // error
97        this.<@TA @TA String @TA @TA []>newList();
98
99        this.<@RTA @RTA String @RTA @RTA [] @RTA @RTA [], MyList<@RTA @RTA String> @RTA @RTA []>newMap();
100        // error
101        this.<String @TA @TA [] @TA @TA [], MyList<@TA @TA String> @TA @TA []>newMap();
102    }
103
104    static <E> void newList() { }
105    static <K, V> void newMap() { }
106}
107
108class MyList<E> { }
109
110
111@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
112@interface TA { }
113
114@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
115@interface TAs {
116    TA[] value();
117}
118
119@Repeatable(RTAs.class)
120@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
121@interface RTA { }
122
123@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
124@interface RTAs {
125    RTA[] value();
126}
127