1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/tools/javac/generics/wildcards/neg/AmbiguousCast.java Sat Dec 01 00:00:00 2007 +0000 1.3 @@ -0,0 +1,55 @@ 1.4 +/* 1.5 + * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or 1.24 + * have any questions. 1.25 + */ 1.26 + 1.27 +/* 1.28 + * @test 1.29 + * @bug 4897892 1.30 + * @summary cast to parameterized type is accepted although it should be rejected 1.31 + * @author gafter 1.32 + * 1.33 + * @compile/fail -source 1.5 -Werror -Xlint:unchecked AmbiguousCast.java 1.34 + */ 1.35 + 1.36 +class Test { 1.37 + 1.38 + private static class GenericWrapper<Elem> { 1.39 + private Elem theObject; 1.40 + public GenericWrapper(Elem arg) { 1.41 + theObject = arg; 1.42 + } 1.43 + public <T extends Elem> GenericWrapper (GenericWrapper<T> other) { 1.44 + this.theObject = other.theObject; 1.45 + } 1.46 + public String toString() { 1.47 + return theObject.toString(); 1.48 + } 1.49 + } 1.50 + private static GenericWrapper<String> method (Object wrappedString) { 1.51 + return (GenericWrapper<String>) wrappedString; 1.52 + } 1.53 + 1.54 + public static void main(String[] args) { 1.55 + System.out.println(method(new GenericWrapper<String>("abc"))); 1.56 + System.out.println(method(new GenericWrapper<Exception>(new Exception()))); 1.57 + } 1.58 +}