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