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  */
  23 
  24 import jdk.internal.org.objectweb.asm.*;
  25 
  26 /*
  27  * @test
  28  * @summary Test that the JVM ignores ACC_MODULE if it is set for a version
  29  *          52 class file.
  30  * @bug 8175383
  31  * @library /test/lib
  32  * @modules java.base/jdk.internal.org.objectweb.asm
  33  * @compile -XDignore.symbol.file ACCModule52.java
  34  * @run main ACCModule52
  35  */
  36 
  37 public class ACCModule52 {
  38 
  39     static final String CLASS_NAME = "ACCModule52Pkg";
  40 
  41     public static void main(String[] args) throws Exception {
  42         int ACC_MODULE = 0x8000;
  43         ClassWriter cw = new ClassWriter(0);
  44         cw.visit(Opcodes.V1_8,
  45                 Opcodes.ACC_INTERFACE + Opcodes.ACC_ABSTRACT + Opcodes.ACC_SYNTHETIC + ACC_MODULE,
  46                 CLASS_NAME,
  47                 null,
  48                 "java/lang/Object",
  49                 null);
  50 
  51         cw.visitEnd();
  52         byte[] bytes = cw.toByteArray();
  53 
  54 
  55         ClassLoader loader = new ClassLoader(ACCModule52.class.getClassLoader()) {
  56             @Override
  57             protected Class<?> findClass(String cn)throws ClassNotFoundException {
  58                 if (cn.equals(CLASS_NAME)) {
  59                     Class superClass = super.defineClass(cn, bytes, 0, bytes.length);
  60                 } else {
  61                     throw new ClassNotFoundException(cn);
  62                 }
  63                 return null;
  64             }
  65         };
  66 
  67         Class<?> clazz = loader.loadClass(CLASS_NAME);
  68     }
  69 }