1 /* 2 * Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24 /* 25 * @test 26 * @summary Test subtyping for wildcards with related type bounds. 27 * 28 * @compile/fail AssignmentDifferentTypes4.java 29 */ 30 31 public class AssignmentDifferentTypes4 { 32 33 public static void main(String[] args) { 34 Ref<Der> derexact = null; 35 Ref<Base> baseexact = null; 36 Ref<? extends Der> derext = null; 37 Ref<? extends Base> baseext = null; 38 Ref<? super Der> dersuper = null; 39 Ref<? super Base> basesuper = null; 40 41 derext = baseext; // <<fail>> <? extends Der> = <? extends Base> 42 } 43 } 44 45 class Ref<T> {} 46 class Base {} 47 class Der extends Base {}