1 /* 2 * Copyright (c) 2019, 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 8209702 27 * @summary Verify that the native clone intrinsic handles value types. 28 * @modules java.base/jdk.experimental.value 29 * @library /test/lib 30 * @run main/othervm -XX:+EnableValhalla -Xbatch -XX:-UseTypeProfile 31 * -XX:CompileCommand=compileonly,compiler.valhalla.valuetypes.MyValue::* 32 * -XX:CompileCommand=compileonly,compiler.valhalla.valuetypes.TestNativeClone::test* 33 * -XX:CompileCommand=compileonly,jdk.internal.reflect.GeneratedMethodAccessor1::invoke 34 * -XX:CompileCommand=dontinline,jdk.internal.reflect.GeneratedMethodAccessor1::invoke 35 * compiler.valhalla.valuetypes.TestNativeClone 36 */ 37 38 package compiler.valhalla.valuetypes; 39 40 import java.lang.invoke.*; 41 import java.lang.reflect.InvocationTargetException; 42 import java.lang.reflect.Method; 43 import jdk.experimental.value.MethodHandleBuilder; 44 import jdk.test.lib.Asserts; 45 46 value class MyValue { 47 public final int x; 48 49 public MyValue(int x) { 50 this.x = x; 51 } 52 } 53 54 public class TestNativeClone { 55 56 private static final MethodHandle cloneValue = MethodHandleBuilder.loadCode(MethodHandles.lookup(), 57 "MyValue", 58 MethodType.methodType(Object.class, MyValue.class.asValueType()), 59 CODE -> { 60 CODE. 61 aload_0(). 62 invokevirtual(Object.class, "clone", "()Ljava/lang/Object;", false). 63 areturn(); 64 }); 65 66 public static void test1(MyValue vt) throws Throwable { 67 try { 68 cloneValue.invoke(vt); 69 throw new RuntimeException("No exception thrown"); 70 } catch (CloneNotSupportedException e) { 71 // Expected 72 } 73 } 74 75 public static void test2(Method clone, Object obj) { 76 try { 77 clone.invoke(obj); 78 } catch (InvocationTargetException e) { 79 // Expected 80 Asserts.assertTrue(e.getCause() instanceof CloneNotSupportedException, "Unexpected exception thrown"); 81 return; 82 } catch (Exception e) { 83 throw new RuntimeException("Unexpected exception thrown", e); 84 } 85 throw new RuntimeException("No exception thrown"); 86 } 87 88 public static void main(String[] args) throws Throwable { 89 MyValue vt = new MyValue(42); 90 Method clone = Object.class.getDeclaredMethod("clone"); 91 clone.setAccessible(true); 92 for (int i = 0; i < 20_000; ++i) { 93 test1(vt); 94 test2(clone, vt); 95 } 96 } 97 }