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

/*
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 * 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.
 *
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/*
 * @test
 * @bug 8154587
 * @summary Check that a default method named clone() does not get masked by
 *          java.lang.Object.clone() during resolution.
 * @compile DefaultClone.jasm
 * @run main DefaultClone
 */

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


interface  DefaultClone$I1 version 53:0 {

    public Method clone:"()Ljava/lang/Object;" stack 1 locals 1 {
        ldc    String "In I1\'s clone()";
        areturn;
    }

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

} // end Class DefaultClone$I1



interface  DefaultClone$I2 implements DefaultClone$I1 version 53:0 {

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

} // end Class DefaultClone$I2


super class DefaultClone$C implements DefaultClone$I2 version 53:0 {

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

    public Method clone:"()Ljava/lang/Object;" stack 1 locals 1 {
        ldc    String "In C\'s clone()";
        areturn;
    }

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

} // end Class DefaultClone$C


super public class DefaultClone version 53:0 {

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

    static Method test:"(LDefaultClone$I2;)Ljava/lang/Object;" stack 1 locals 1 {
        aload_0;
        invokeinterface    InterfaceMethod DefaultClone$I2.clone:"()Ljava/lang/Object;",  1;
        areturn;
    }

    public static Method main:"([Ljava/lang/String;)V" stack 3 locals 2 {
        new    class DefaultClone$C;
        dup;
        invokespecial    Method DefaultClone$C."<init>":"()V";
        invokestatic    Method test:"(LDefaultClone$I2;)Ljava/lang/Object;";
        checkcast    class java/lang/String;
        astore_1;
        aload_1;
        ldc    String "In C\'s clone()";
        invokevirtual    Method java/lang/String.equals:"(Ljava/lang/Object;)Z";
        ifne    L33;
        new    class java/lang/RuntimeException;
        dup;
        ldc    String "Wrong clone() called";
        invokespecial    Method java/lang/RuntimeException."<init>":"(Ljava/lang/String;)V";
        athrow;
    L33:    stack_frame_type append;
        locals_map class java/lang/String;
        return;
    }

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

} // end Class DefaultClone