1 /*
2 * Copyright (c) 2017, 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 /*
26 * @test
27 * @bug 8154587
28 * @summary Check that a default method named clone() does not get masked by
29 * java.lang.Object.clone().
30 * @compile DefaultClone.jasm
31 * @run main DefaultClone
32 */
33
34 // The below .jasm code implements the following java code:
35 //
36 // public class DefaultClone {
37 //
38 // interface I1 {
39 // default Object clone() {
40 // return "In I1's clone()";
41 // }
42 // }
43 //
44 //
45 // interface I2 extends I1 { }
46 //
47 //
48 // static class C implements I2 {
49 // public Object clone() {
50 // return "In C's clone()";
51 // }
52 // }
53 //
54 //
55 // static Object test(I2 i) { return i.clone(); }
56 //
57 // public static void main(String[] args) {
58 // String s = (String)test(new C());
59 // if (!s.equals("In C's clone()")) {
60 // throw new RuntimeException("Wrong clone() called");
61 // }
62 // }
63 // }
64
65
66 interface DefaultClone$I1 version 53:0 {
67
68 public Method clone:"()Ljava/lang/Object;" stack 1 locals 1 {
69 ldc String "In I1\'s clone()";
70 areturn;
71 }
72
73 static abstract interface InnerClass I1=class DefaultClone$I1 of class DefaultClone;
74
75 } // end Class DefaultClone$I1
76
77
78
79 interface DefaultClone$I2 implements DefaultClone$I1 version 53:0 {
80
81 static abstract interface InnerClass I2=class DefaultClone$I2 of class DefaultClone;
82 static abstract interface InnerClass I1=class DefaultClone$I1 of class DefaultClone;
83
84 } // end Class DefaultClone$I2
85
86
87 super class DefaultClone$C implements DefaultClone$I2 version 53:0 {
88
89 Method "<init>":"()V" stack 1 locals 1 {
90 aload_0;
91 invokespecial Method java/lang/Object."<init>":"()V";
92 return;
93 }
94
95 public Method clone:"()Ljava/lang/Object;" stack 1 locals 1 {
96 ldc String "In C\'s clone()";
97 areturn;
98 }
99
100 static InnerClass C=class DefaultClone$C of class DefaultClone;
101 static abstract interface InnerClass I2=class DefaultClone$I2 of class DefaultClone;
102
103 } // end Class DefaultClone$C
104
105
106 super public class DefaultClone version 53:0 {
107
108 public Method "<init>":"()V" stack 1 locals 1 {
109 aload_0;
110 invokespecial Method java/lang/Object."<init>":"()V";
111 return;
112 }
113
114 static Method test:"(LDefaultClone$I2;)Ljava/lang/Object;" stack 1 locals 1 {
115 aload_0;
116 invokeinterface InterfaceMethod DefaultClone$I2.clone:"()Ljava/lang/Object;", 1;
117 areturn;
118 }
119
120 public static Method main:"([Ljava/lang/String;)V" stack 3 locals 2 {
121 new class DefaultClone$C;
122 dup;
123 invokespecial Method DefaultClone$C."<init>":"()V";
124 invokestatic Method test:"(LDefaultClone$I2;)Ljava/lang/Object;";
125 checkcast class java/lang/String;
126 astore_1;
127 aload_1;
128 ldc String "In C\'s clone()";
129 invokevirtual Method java/lang/String.equals:"(Ljava/lang/Object;)Z";
130 ifne L33;
131 new class java/lang/RuntimeException;
132 dup;
133 ldc String "Wrong clone() called";
134 invokespecial Method java/lang/RuntimeException."<init>":"(Ljava/lang/String;)V";
135 athrow;
136 L33: stack_frame_type append;
137 locals_map class java/lang/String;
138 return;
139 }
140
141 static InnerClass C=class DefaultClone$C of class DefaultClone;
142 static abstract interface InnerClass I2=class DefaultClone$I2 of class DefaultClone;
143 static abstract interface InnerClass I1=class DefaultClone$I1 of class DefaultClone;
144
145 } // end Class DefaultClone