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 java.base/jdk.internal.org.objectweb.asm 28 * 29 * @summary converted from VM Testbase vm/mlvm/anonloader/func/uniqueClassAndObject. 30 * VM Testbase keywords: [feature_mlvm] 31 * VM Testbase readme: 32 * DESCRIPTION 33 * Create two anonymous classes and instantiate an object from each of them. 34 * Verify that the references to these objects are different and references 35 * to their classes are not equal too. 36 * 37 * @library /vmTestbase 38 * /test/lib 39 * @run driver jdk.test.lib.FileInstaller . . 40 * 41 * @comment build test class and indify classes 42 * @build vm.mlvm.anonloader.func.uniqueClassAndObject.Test 43 * @run driver vm.mlvm.share.IndifiedClassesBuilder 44 * 45 * @run main/othervm vm.mlvm.anonloader.func.uniqueClassAndObject.Test 46 */ 47 48 package vm.mlvm.anonloader.func.uniqueClassAndObject; 49 50 import jdk.internal.org.objectweb.asm.ClassReader; 51 import vm.mlvm.anonloader.share.AnonkTestee01; 52 import vm.mlvm.share.MlvmTest; 53 import vm.share.FileUtils; 54 import vm.share.UnsafeAccess; 55 56 public class Test extends MlvmTest { 57 private static final Class<?> PARENT = AnonkTestee01.class; 58 59 @Override 60 public boolean run() throws Exception { 61 byte[] classBytes = FileUtils.readClass(PARENT.getName()); 62 ClassReader reader = new ClassReader(classBytes); 63 Object o1 = UnsafeAccess.unsafe.defineAnonymousClass(PARENT, 64 classBytes, null).newInstance(); 65 int cpLength = reader.getItemCount(); 66 Object cpPatch[] = new Object[cpLength]; 67 Object o2 = UnsafeAccess.unsafe.defineAnonymousClass(PARENT, 68 classBytes, cpPatch).newInstance(); 69 if ( o1 == o2 ) { 70 getLog().complain("Error: The objects are equal"); 71 return false; 72 } 73 74 if ( o1.getClass() == o2.getClass() ) { 75 getLog().complain("Error: The classes are equal"); 76 return false; 77 } 78 79 return true; 80 } 81 82 public static void main(String[] args) { MlvmTest.launch(args); } 83 }