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 /* 25 * @test 26 * @summary basic test for reflection on MVT 27 * @build Point 28 * @run testng/othervm -Xint -Xverify:none -XX:+EnableMVT MVTReflectionTest 29 */ 30 31 import jdk.experimental.value.ValueType; 32 33 import org.testng.annotations.Test; 34 import static org.testng.Assert.*; 35 36 @Test 37 public class MVTReflectionTest { 38 private static Class<?> VCC = Point.class; 39 private static ValueType<?> VT = ValueType.forClass(VCC); 40 private static Class<?> DVT = VT.valueClass(); 41 42 public void testValueCapableClass() throws Exception { 43 Class<?> pointClass = Class.forName("Point"); 44 assertEquals(pointClass, VCC); 45 46 // test getSuperClass 47 assertEquals(pointClass.getSuperclass(), Object.class); 48 49 // test getFields and getDeclaredFields 50 assertTrue(pointClass.getFields().length == 3); 51 assertTrue(pointClass.getDeclaredFields().length == 3); 52 } 53 54 public void testDerivedValueType() throws Exception { 55 // test Class.forName 56 try { 57 Class<?> c = Class.forName(DVT.getName()); 58 throw new RuntimeException("should fail to load " + c); 59 } catch (ClassNotFoundException e) {} 60 61 Module m = Point.class.getClassLoader().getUnnamedModule(); 62 Class<?> c = Class.forName(m, DVT.getName()); 63 assertEquals(c, null); 64 65 // test getSuperClass 66 assertEquals(DVT.getSuperclass(), __Value.class); 67 68 // test getFields and getDeclaredFields 69 try { 70 DVT.getFields(); 71 throw new RuntimeException("should fail to getFields on " + DVT); 72 } catch (UnsupportedOperationException e) {} 73 74 try { 75 DVT.newInstance(); 76 throw new RuntimeException("should fail to newInstance on " + DVT); 77 } catch (UnsupportedOperationException e) {} 78 } 79 80 public void testValueTypeArray() throws Exception { 81 Point[] points = new Point[0]; 82 83 Class<?> c1 = Class.forName("[LPoint;"); 84 Class<?> c2 = VT.arrayValueClass(); 85 assertEquals(c1, points.getClass()); 86 87 String name = "[Q" + DVT.getName() + ";"; 88 assertEquals(name, c2.getName()); 89 90 // cannot load an array DVT class 91 try { 92 Class.forName(name); 93 throw new RuntimeException("should fail to load " + name); 94 } catch (ClassNotFoundException e) {} 95 } 96 }