1 /* 2 * Copyright (c) 2022, 2024, 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 * @ignore Fix JDK-8328412 27 * @test ACC_ICCETest 28 * @bug 8281279 29 * @summary test that a value class cannot sub-class an identity class 30 * @enablePreview 31 * @compile ACCICCETests.jcod 32 * @run main/othervm ACC_ICCETest 33 */ 34 35 public class ACC_ICCETest { 36 37 public static void runTest(String test_name, String message) throws Exception { 38 System.out.println("Testing: " + test_name); 39 try { 40 Class newClass = Class.forName(test_name); 41 } catch (java.lang.IncompatibleClassChangeError e) { 42 if (!e.getMessage().contains(message)) { 43 throw new RuntimeException( "Wrong IncompatibleClassChangeError: " + e.getMessage()); 44 } 45 } 46 } 47 48 public static void main(String[] args) throws Exception { 49 runTest("Dot", "Value type Dot has an identity type as supertype"); 50 } 51 }