test/tools/javac/QualifiedThisExactMatch.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 554
9d9f26857129
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

duke@1 1 /*
ohair@554 2 * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
duke@1 7 * published by the Free Software Foundation.
duke@1 8 *
duke@1 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 13 * accompanied this code).
duke@1 14 *
duke@1 15 * You should have received a copy of the GNU General Public License version
duke@1 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 18 *
ohair@554 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 20 * or visit www.oracle.com if you need additional information or have any
ohair@554 21 * questions.
duke@1 22 */
duke@1 23
duke@1 24 /*
duke@1 25 * @test
duke@1 26 * @bug 4102393 4133457
duke@1 27 * @summary Verify that <class>.this matches <class> exactly, not a subclass.
duke@1 28 * @author maddox
duke@1 29 *
duke@1 30 * @run compile QualifiedThisExactMatch.java
duke@1 31 * @run main QualifiedThisExactMatch
duke@1 32 */
duke@1 33
duke@1 34 public class QualifiedThisExactMatch {
duke@1 35
duke@1 36 void test() throws Exception {}
duke@1 37
duke@1 38 void checkIt1() throws Exception {
duke@1 39 QualifiedThisExactMatch z = new QualifiedThisExactMatch() {
duke@1 40 void test() throws Exception {
duke@1 41 if (this == QualifiedThisExactMatch.this) {
duke@1 42 throw new Exception("anonymous");
duke@1 43 }
duke@1 44 }
duke@1 45 };
duke@1 46 z.test();
duke@1 47 }
duke@1 48
duke@1 49 //---
duke@1 50
duke@1 51 class A {
duke@1 52 Object getThisA() { return A.this; }
duke@1 53 class B extends A {
duke@1 54 Object getThisA() { return A.this; }
duke@1 55 Object getThisB() { return B.this; }
duke@1 56 }
duke@1 57 }
duke@1 58
duke@1 59 void check(Object x, Object y) throws Exception {
duke@1 60 if (x != y) {
duke@1 61 throw new Exception("named");
duke@1 62 }
duke@1 63 }
duke@1 64
duke@1 65 void checkIt2 () throws Exception {
duke@1 66 A a = new A();
duke@1 67 A.B b = a.new B();
duke@1 68
duke@1 69 check(a, a.getThisA());
duke@1 70 check(a, b.getThisA());
duke@1 71 check(b, b.getThisB());
duke@1 72 }
duke@1 73
duke@1 74 //---
duke@1 75
duke@1 76 public static void main(String[] s) throws Exception {
duke@1 77 QualifiedThisExactMatch x = new QualifiedThisExactMatch();
duke@1 78 x.checkIt1();
duke@1 79 x.checkIt2();
duke@1 80 }
duke@1 81 }

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