test/hotspot/jtreg/runtime/clone/DefaultFinalize.jasm

/*
 * Copyright (c) 2017, 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 8154587
 * @summary Check that a default method named finalize() does not get masked by
 *          java.lang.Object.finalize() during resolution.
 * @compile DefaultFinalize.jasm
 * @run main DefaultFinalize
 */

// The below .jasm code implements the following java code:
//
// public class DefaultFinalize {
//
//     static String res;
//
//     interface I1 {
//         default void finalize() {
//             res = "In I1's finalize()";
//         }
//     }
//
//     interface I2 extends I1 { }
//
//     static class C implements I2 {
//         public void finalize() {
//             res = "In C's finalize()";
//         }
//     }
//
//     static void test(I2 i) { i.finalize(); }
//
//     public static void main(String[] args) {
//         test(new C());
//         if (!res.equals("In C's finalize()")) {
//             throw new RuntimeException("Wrong finalize() method called");
//         }
//     }
// }


interface  DefaultFinalize$I1 version 54:0 {

    public Method finalize:"()V" stack 1 locals 1 {
        ldc    String "In I1\'s finalize()";
        putstatic    Field DefaultFinalize.res:"Ljava/lang/String;";
        return;
    }

    static abstract interface InnerClass I1=class DefaultFinalize$I1 of class DefaultFinalize;

} // end Class DefaultFinalize$I1


interface  DefaultFinalize$I2 implements DefaultFinalize$I1 version 54:0 {

    static abstract interface InnerClass I2=class DefaultFinalize$I2 of class DefaultFinalize;
    static abstract interface InnerClass I1=class DefaultFinalize$I1 of class DefaultFinalize;

} // end Class DefaultFinalize$I2


super class DefaultFinalize$C implements DefaultFinalize$I2 version 54:0 {

    Method "<init>":"()V" stack 1 locals 1 {
        aload_0;
        invokespecial    Method java/lang/Object."<init>":"()V";
        return;
    }

    public Method finalize:"()V" stack 1 locals 1 {
        ldc    String "In C\'s finalize()";
        putstatic    Field DefaultFinalize.res:"Ljava/lang/String;";
        return;
    }

    static InnerClass C=class DefaultFinalize$C of class DefaultFinalize;
    static abstract interface InnerClass I2=class DefaultFinalize$I2 of class DefaultFinalize;

} // end Class DefaultFinalize$C


super public class DefaultFinalize version 54:0 {

    static Field res:"Ljava/lang/String;";

    public Method "<init>":"()V" stack 1 locals 1 {
        aload_0;
        invokespecial    Method java/lang/Object."<init>":"()V";
        return;
    }

    static Method test:"(LDefaultFinalize$I2;)V" stack 1 locals 1 {
        aload_0;
        invokeinterface    InterfaceMethod DefaultFinalize$I2.finalize:"()V",  1;
        return;
    }

    public static Method main:"([Ljava/lang/String;)V" stack 3 locals 1 {
        new    class DefaultFinalize$C;
        dup;
        invokespecial   Method DefaultFinalize$C."<init>":"()V";
        invokestatic    Method test:"(LDefaultFinalize$I2;)V";
        getstatic       Field res:"Ljava/lang/String;";
        ldc    String "In C\'s finalize()";
        invokevirtual   Method java/lang/String.equals:"(Ljava/lang/Object;)Z";
        ifne    L31;
        new    class java/lang/RuntimeException;
        dup;
        ldc    String "Wrong finalize() method called";
        invokespecial    Method java/lang/RuntimeException."<init>":"(Ljava/lang/String;)V";
        athrow;
      L31:    stack_frame_type same;
        return;
    }

    static InnerClass C=class DefaultFinalize$C of class DefaultFinalize;
    static abstract interface InnerClass I2=class DefaultFinalize$I2 of class DefaultFinalize;
    static abstract interface InnerClass I1=class DefaultFinalize$I1 of class DefaultFinalize;

} // end Class DefaultFinalize