1 /*
   2  * Copyright (c) 2010, 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 /*
  26  * @test
  27  * @modules java.base/jdk.internal.misc
  28  *
  29  * @summary converted from VM Testbase vm/mlvm/anonloader/func/findByName.
  30  * VM Testbase keywords: [feature_mlvm]
  31  * VM Testbase readme:
  32  * DESCRIPTION
  33  *     Try to find a class loaded using Unsafe.defineAnonymousClass through the VM system dictionary
  34  *     (using Class.forName()). It is an error when the class can be found in this way.
  35  *
  36  * @library /vmTestbase
  37  *          /test/lib
  38  * @run driver jdk.test.lib.FileInstaller . .
  39  *
  40  * @comment build test class and indify classes
  41  * @build vm.mlvm.anonloader.func.findByName.Test
  42  * @run driver vm.mlvm.share.IndifiedClassesBuilder
  43  *
  44  * @run main/othervm vm.mlvm.anonloader.func.findByName.Test
  45  */
  46 
  47 package vm.mlvm.anonloader.func.findByName;
  48 
  49 import vm.mlvm.anonloader.share.AnonkTestee01;
  50 import vm.mlvm.share.MlvmTest;
  51 import vm.share.FileUtils;
  52 import vm.share.UnsafeAccess;
  53 
  54 public class Test extends MlvmTest {
  55     private static final Class<?> PARENT = AnonkTestee01.class;
  56 
  57     public boolean run() throws Exception {
  58         try {
  59             byte[] classBytes = FileUtils.readClass(PARENT.getName());
  60             Class<?> c = UnsafeAccess.unsafe.defineAnonymousClass(PARENT,
  61                     classBytes, null);
  62             getLog().display("Anonymous class name: " + c.getName());
  63             Class.forName(c.getName()).newInstance();
  64             return false;
  65         } catch ( ClassNotFoundException e ) {
  66             return true;
  67         }
  68     }
  69 
  70     public static void main(String[] args) { MlvmTest.launch(args); }
  71 }