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  * @bug 4892571
  27  * @summary generics: type cast with instance of
  28  * @author gafter
  29  *
  30  * @compile -source 1.5 -Werror InstanceOf.java
  31  */
  32 
  33 class InstanceOf<T> {
  34     static interface I1<T> {
  35         public T[] toArray();
  36     }
  37     static interface I2<T> extends I1<T> {
  38         public T[] toArray();
  39     }
  40     static interface I3<T> extends I2<T> {    }
  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 }