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/castToParent. 30 * VM Testbase keywords: [feature_mlvm, clarify-spec, exclude] 31 * VM Testbase comments: 8199227 32 * VM Testbase readme: 33 * DESCRIPTION 34 * Try to cast an object of a class, which is loaded by Unsafe.defineAnonymousClass to its 35 * parent (called AnonkTestee01) using the following cast methods: 36 * - (AnonkTestee01) o 37 * - o.getClass().cast(new AnonkTestee01()); 38 * 39 * @library /vmTestbase 40 * /test/lib 41 * @run driver jdk.test.lib.FileInstaller . . 42 * @ignore 8199227 43 * 44 * @comment build test class and indify classes 45 * @build vm.mlvm.anonloader.func.castToParent.Test 46 * @run driver vm.mlvm.share.IndifiedClassesBuilder 47 * 48 * @run main/othervm vm.mlvm.anonloader.func.castToParent.Test 49 */ 50 51 package vm.mlvm.anonloader.func.castToParent; 52 53 import vm.mlvm.anonloader.share.AnonkTestee01; 54 import vm.mlvm.share.Env; 55 import vm.mlvm.share.MlvmTest; 56 import vm.share.FileUtils; 57 import vm.share.UnsafeAccess; 58 59 public class Test extends MlvmTest { 60 private static final Class<?> PARENT = AnonkTestee01.class; 61 62 public boolean run() throws Exception { 63 byte[] classBytes = FileUtils.readClass(PARENT.getName()); 64 Class<?> cls = UnsafeAccess.unsafe.defineAnonymousClass(PARENT, 65 classBytes, null); 66 Object o = cls.newInstance(); 67 // Try to cast anonymous class to its parent 68 AnonkTestee01 anonCastToParent = (AnonkTestee01) o; 69 if ( anonCastToParent.equals(o) ) 70 Env.traceNormal("Anonymous object can be cast to original one"); 71 72 // Cast the class 73 new AnonkTestee01().getClass().cast(o); 74 75 Env.traceNormal("Anonymous can be cast to original class"); 76 77 return true; 78 } 79 80 public static void main(String[] args) { MlvmTest.launch(args); } 81 }