1 /* 2 * Copyright (c) 2022, 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 8282107 27 * @summary Check that javac can compile against value classes at lower source levels 28 * @compile GenericPoint.java 29 * @compile --source 16 ConsumeValueClassAtLowerLevel.java 30 * @run main ConsumeValueClassAtLowerLevel 31 */ 32 33 public class ConsumeValueClassAtLowerLevel { 34 public static void main(String [] args) { 35 36 /* Attempting to instantiate a value/primitive class in earlier source level should 37 * result in an InstantiationError since javac's class reader downgrades 38 * the value class to an identity class if current source level does not 39 * support value/primitive class. And so rather than invoke the factory method, 40 * the source code of earlier vintage would attempt to invoke the constructor 41 * and so should crash and burn with an InstantiationError. 42 * 43 * This behavior is subject to change - see JDK-8282525 44 */ 45 boolean gotIE = false; 46 try { 47 GenericPoint<Integer> gl = new GenericPoint<>(0, 0); 48 } catch (java.lang.InstantiationError ie) { 49 gotIE = true; 50 } 51 if (!gotIE) { 52 throw new AssertionError("Did not see instantiation error!"); 53 } 54 } 55 }