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 4856982
  27  * @summary generics: unable to cast between two convertible types
  28  * @author gafter
  29  *
  30  * @compile  AmbiguousCast2.java
  31  */
  32 
  33 import java.lang.ref.*;
  34 
  35 class Test<K, V> extends WeakReference<V> {
  36     static ReferenceQueue<Integer> queue = new ReferenceQueue<Integer>();
  37 
  38     public Test(K key, V value, ReferenceQueue<V> queue) {
  39         super(value, queue);
  40     }
  41 
  42     public static void main(String[] arg) throws Exception {
  43         Test<String, Integer> fromQueue = (Test<String, Integer>) queue.remove();
  44     }
  45 }