jdk8-mips64-public/langtools: test/tools/javac/QualifiedThisExactMatch.java@7909abb85562

     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 }

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