1/* 2 * Copyright (c) 2015, 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 7040592 27 * @summary Test that the assertion in State.forceStackTop does not fail at compile time. 28 * @modules java.xml 29 */ 30 31import java.lang.reflect.Field; 32import java.util.ArrayList; 33import org.w3c.dom.Element; 34 35public class CoerceNullToMoreSpecificTypeTest { 36 abstract class NodeImpl { 37 } 38 39 NodeImpl ownerNode; 40 41 public Element getElement() { 42 return (Element) (isOwned() ? ownerNode : null); 43 } 44 45 boolean isOwned() { 46 return true; 47 } 48 49 static void processArrays(boolean expectNulls, Object [] nulla, Object [][] nullaa) { 50 if (expectNulls) { 51 if (nulla != null || nullaa != null) { 52 throw new AssertionError("Null actual, but not null formal"); 53 } 54 } else { 55 if (nulla.length != 123 || nullaa.length != 321) 56 throw new AssertionError("Wrong arrays received"); 57 } 58 } 59 60 public static void main(String[] args) { 61 ArrayList<Class<?>> typeList = new ArrayList<>(); 62 Field rf = null; 63 typeList.add((rf != null) ? rf.getType() : null); 64 processArrays(true, null, null); 65 processArrays(false, new Object[123], new Object[321][]); 66 } 67} 68