1 /*

     2  * Copyright (c) 2013, 2016, 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 8026365

    27  * @summary Test invokespecial of host class method from an anonymous class

    28  * @author  Robert Field

    29  * @library /test/lib

    30  * @modules java.base/jdk.internal.org.objectweb.asm

    31  *          java.base/jdk.internal.misc

    32  * @compile -XDignore.symbol.file InvokeSpecialAnonTest.java

    33  * @run main ClassFileInstaller InvokeSpecialAnonTest AnonTester

    34  * @run main/othervm -Xbootclasspath/a:. -Xverify:all InvokeSpecialAnonTest

    35  */

    36 import jdk.internal.org.objectweb.asm.*;

    37 import java.lang.reflect.Constructor;

    38 import jdk.internal.misc.Unsafe;

    39 

    40 public class InvokeSpecialAnonTest implements Opcodes {

    41 

    42     static byte[] anonClassBytes() throws Exception {

    43         ClassWriter cw = new ClassWriter(0);

    44         MethodVisitor mv;

    45 

    46         cw.visit(V1_8, ACC_FINAL + ACC_SUPER, "Anon", null, "java/lang/Object", null);

    47 

    48         {

    49             mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);

    50             mv.visitCode();

    51             mv.visitVarInsn(ALOAD, 0);

    52             mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");

    53             mv.visitInsn(RETURN);

    54             mv.visitMaxs(2, 2);

    55             mv.visitEnd();

    56         }

    57         {

    58             mv = cw.visitMethod(ACC_PUBLIC, "m", "(LInvokeSpecialAnonTest;)I", null, null);

    59             mv.visitCode();

    60             mv.visitVarInsn(ALOAD, 0);

    61             mv.visitVarInsn(ALOAD, 1);

    62             mv.visitMethodInsn(INVOKESPECIAL, "InvokeSpecialAnonTest", "privMethod", "()I");

    63             mv.visitInsn(IRETURN);

    64             mv.visitMaxs(2, 3);

    65             mv.visitEnd();

    66         }

    67         cw.visitEnd();

    68 

    69         return cw.toByteArray();

    70     }

    71 

    72     private int privMethod() { return 1234; }

    73 

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

    75         Class<?> klass = InvokeSpecialAnonTest.class;

    76         try {

    77            Class<?> result = AnonTester.defineTest(klass, anonClassBytes());

    78            System.out.println("Passed.");

    79         } catch (Exception e) {

    80            e.printStackTrace();

    81            throw e;

    82         }

    83     }

    84 }

    85 

    86 

    87 class AnonTester {

    88     private static final Unsafe UNSAFE = Unsafe.getUnsafe();

    89 

    90     public static Class<?> defineTest(Class<?> targetClass, byte[] classBytes) throws Exception {

    91         return UNSAFE.defineAnonymousClass(targetClass, classBytes, null);

    92     }

    93 }