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/*
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* Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4102393 4133457
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* @summary Verify that <class>.this matches <class> exactly, not a subclass.
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* @author maddox
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*
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* @run compile QualifiedThisExactMatch.java
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* @run main QualifiedThisExactMatch
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*/
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public class QualifiedThisExactMatch {
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void test() throws Exception {}
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void checkIt1() throws Exception {
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QualifiedThisExactMatch z = new QualifiedThisExactMatch() {
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void test() throws Exception {
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if (this == QualifiedThisExactMatch.this) {
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throw new Exception("anonymous");
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}
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}
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};
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z.test();
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}
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//---
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class A {
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Object getThisA() { return A.this; }
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class B extends A {
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Object getThisA() { return A.this; }
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Object getThisB() { return B.this; }
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}
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}
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void check(Object x, Object y) throws Exception {
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if (x != y) {
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throw new Exception("named");
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}
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}
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void checkIt2 () throws Exception {
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A a = new A();
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A.B b = a.new B();
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check(a, a.getThisA());
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check(a, b.getThisA());
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check(b, b.getThisB());
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}
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//---
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public static void main(String[] s) throws Exception {
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QualifiedThisExactMatch x = new QualifiedThisExactMatch();
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x.checkIt1();
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x.checkIt2();
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}
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}