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 * @test 26 * @bug 8293134 27 * @summary Test that a super abstract value class is allowed. 28 * @enablePreview 29 * @run main AbstractValueClassTest 30 */ 31 32 public class AbstractValueClassTest { 33 34 public static void main(String[] args) { 35 A a = new A(); 36 a.doit(a); 37 } 38 public static abstract value class T { 39 public abstract void doit(T t); 40 } 41 42 public static final value class A extends T { 43 public void doit(T t) { 44 System.out.println(t); 45 } 46 } 47 public static final value class B extends T { 48 public void doit(T t) { 49 System.out.println(t); 50 } 51 } 52 }