jdk8-mips64-public/hotspot: test/runtime/RedefineTests/RedefineInterfaceCall.java@f8a45a60bc6b

8174962: Better interface invocations
Reviewed-by: jrose, coleenp, ahgross, acorn, vlivanov

     1 /*

     2  * Copyright (c) 2017, 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 8174962

    27  * @summary Redefine class with interface method call

    28  * @library /testlibrary /test/lib

    29  * @modules java.base/jdk.internal.misc

    30  * @modules java.compiler

    31  *          java.instrument

    32  *          jdk.jartool/sun.tools.jar

    33  * @run main RedefineClassHelper

    34  * @run main/othervm -javaagent:redefineagent.jar RedefineInterfaceCall

    35  */

    37 import static jdk.testlibrary.Asserts.assertEquals;

    39 interface I1 { default int m() { return 0; } }

    40 interface I2 extends I1 {}

    42 public class RedefineInterfaceCall {

    44     public static class C implements I2 {

    45         public int test(I2 i) {

    46             return i.m(); // invokeinterface cpCacheEntry

    47         }

    48     }

    50     static String newI1 =

    51       "interface I1 { default int m() { return 1; } }";

    53     static String newC =

    54         "public class RedefineInterfaceCall$C implements I2 { " +

    55         "  public int test(I2 i) { " +

    56         "    return i.m(); " +

    57         "  } " +

    58         "} ";

    60     static int test(I2 i) {

    61         return i.m(); // invokeinterface cpCacheEntry

    62     }

    64     public static void main(String[] args) throws Exception {

    65         C c = new C();

    67         assertEquals(test(c),   0);

    68         assertEquals(c.test(c), 0);

    70         RedefineClassHelper.redefineClass(C.class, newC);

    72         assertEquals(c.test(c), 0);

    74         RedefineClassHelper.redefineClass(I1.class, newI1);

    76         assertEquals(test(c),   1);

    77         assertEquals(c.test(c), 1);

    79         RedefineClassHelper.redefineClass(C.class, newC);

    81         assertEquals(c.test(c), 1);

    82     }

    83 }

Mercurial > jdk8-mips64-public > hotspot / file revision