test/tools/javac/conditional/6500343/T6500343a.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

     1 /*
     2  * Copyright (c) 2008, 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 6500343
    27  * @summary compiler generates bad code when translating conditional expressions
    28  * @author Maurizio Cimadamore
    29  *
    30  */
    32 public class T6500343a {
    33     static class Base {}
    34     static interface I {}
    35     static class A1 extends Base implements I {}
    36     static class A2 extends Base implements I {}
    38     static Object crash(I i, A1 a1, A2 a2, boolean b1, boolean b2) {
    39         return b1 ? i : b2 ? a2 : a1;
    40         // lub(I, lub(A1, A2)) ==> lub(I, Base&I) ==> I (doesn't compile on 1.4 ok >1.5)
    41     }
    43     public static void main(String[] args) {
    44         T6500343a.crash(new A1(), new A1(), new A2(), true, false);
    45         T6500343a.crash(new A1(), new A1(), new A2(), false, true);
    46         T6500343a.crash(new A1(), new A1(), new A2(), false, false);
    47         T6500343a.crash(new A1(), new A1(), new A2(), true, true);
    48     }
    49 }

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