Tue, 20 Dec 2016 15:24:55 -0800
Added tag jdk8u152-b00 for changeset 03e31cfcd499
1 /*
2 * Copyright (c) 1998, 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 */
24 /*
25 * @test
26 * @bug 4102393 4133457
27 * @summary Verify that <class>.this matches <class> exactly, not a subclass.
28 * @author maddox
29 *
30 * @run compile QualifiedThisExactMatch.java
31 * @run main QualifiedThisExactMatch
32 */
34 public class QualifiedThisExactMatch {
36 void test() throws Exception {}
38 void checkIt1() throws Exception {
39 QualifiedThisExactMatch z = new QualifiedThisExactMatch() {
40 void test() throws Exception {
41 if (this == QualifiedThisExactMatch.this) {
42 throw new Exception("anonymous");
43 }
44 }
45 };
46 z.test();
47 }
49 //---
51 class A {
52 Object getThisA() { return A.this; }
53 class B extends A {
54 Object getThisA() { return A.this; }
55 Object getThisB() { return B.this; }
56 }
57 }
59 void check(Object x, Object y) throws Exception {
60 if (x != y) {
61 throw new Exception("named");
62 }
63 }
65 void checkIt2 () throws Exception {
66 A a = new A();
67 A.B b = a.new B();
69 check(a, a.getThisA());
70 check(a, b.getThisA());
71 check(b, b.getThisB());
72 }
74 //---
76 public static void main(String[] s) throws Exception {
77 QualifiedThisExactMatch x = new QualifiedThisExactMatch();
78 x.checkIt1();
79 x.checkIt2();
80 }
81 }