1 /* 2 * Copyright (c) 2003, 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 4892571 27 * @summary generics: type cast with instance of 28 * @author gafter 29 * 30 * @compile -Werror InstanceOf.java 31 */ 32 33 class InstanceOf<T> { 34 static interface I1<T> { toArray()35 public T[] toArray(); 36 } 37 static interface I2<T> extends I1<T> { toArray()38 public T[] toArray(); 39 } 40 static interface I3<T> extends I2<T> { } InstanceOf()41 InstanceOf() { 42 I1<T> inv = null; 43 I1<? extends T> cov = null; 44 I1<? super T> con = null; 45 boolean b; 46 b = inv instanceof I3; // <<pass>> 47 b = cov instanceof I3; // <<pass>> 48 b = con instanceof I3; // <<pass>> 49 } 50 } 51