1 /*

     2  * Copyright (c) 2014, 2018, 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  */

    23 

    24 /*

    25  * @test

    26  * @bug 6904403 8010319

    27  * @summary Don't assert if we redefine finalize method

    28  * @library /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 RedefineFinalizer

    35  */

    36 

    37 /*

    38  * Regression test for hitting:

    39  *

    40  * assert(f == k->has_finalizer()) failed: inconsistent has_finalizer

    41  *

    42  * when redefining finalizer method

    43  */

    44 

    45 

    46 // package access top-level class to avoid problem with RedefineClassHelper

    47 // and nested types.

    48 class RedefineFinalizer_B {

    49     protected void finalize() {

    50         // should be empty

    51     }

    52 }

    53 

    54 public class RedefineFinalizer {

    55 

    56     public static String newB =

    57                 "class RedefineFinalizer_B {" +

    58                 "   protected void finalize() { " +

    59                 "       System.out.println(\"Finalizer called\");" +

    60                 "   }" +

    61                 "}";

    62 

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

    64         RedefineClassHelper.redefineClass(RedefineFinalizer_B.class, newB);

    65 

    66         A a = new A();

    67     }

    68 

    69     static class A extends RedefineFinalizer_B {

    70     }

    71 }