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 4916607
  27  * @summary Test casts (legal, warning, and errors)
  28  * @author gafter
  29  *
  30  * @compile/fail -source 1.5 CastFail1.java
  31  */
  32 
  33 import java.util.*;
  34 
  35 class CastTest {
  36 
  37     // --- Directly transferring parameters ---
  38 
  39     private class AA<T> { }
  40 
  41     private class AB<T> extends AA<T> { }
  42     private class AC<T> extends AA<Vector<T>> { }
  43     private class AD<T> extends AA<Vector<? extends T>> { }
  44     private class AE<T> extends AA<Vector<? super T>> { }
  45     private class AF<T> extends AA<T[]> { }
  46     private class AG<T> extends AA<String> { }
  47 
  48     private void parameterTransfer() {
  49         Object o;
  50 
  51         o = (AB<String>) (AA<Number>) null; // <<fail 1>>
  52     }
  53 
  54 }