duke@1: /*
ohair@554:  * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
duke@1:  */
duke@1: 
duke@1: /*
duke@1:  * @test
duke@1:  * @bug 5044157
duke@1:  * @summary type system loophole in wildcard substitution
duke@1:  * @author Gilad Bracha
duke@1:  *
duke@1:  * @compile/fail CaptureInSubtype.java
duke@1:  */
duke@1: 
duke@1: import java.util.List;
duke@1: import java.util.ArrayList;
duke@1: 
duke@1: public class CaptureInSubtype {
duke@1: 
duke@1:     static class SuperOfFlaw<S>{
duke@1:         S s;
duke@1:         S get() { return s;}
duke@1:         void put(S a) { s = a;}
duke@1: 
duke@1:         SuperOfFlaw(S a) { s = a;}
duke@1:     }
duke@1: 
duke@1:     static class Flaw<T> extends SuperOfFlaw<List<T>> {
duke@1:         List<T> fetch(){return s;}
duke@1: 
duke@1:         Flaw(T t){super(new ArrayList<T>()); s.add(t);}
duke@1:     }
duke@1: 
duke@1:     static class SuperOfShowFlaw {
duke@1: 
duke@1:         SuperOfFlaw<List<?>> m(){return null;}
duke@1:     }
duke@1: 
duke@1: 
duke@1:     public static class ShowFlaw extends SuperOfShowFlaw {
duke@1:         static Flaw<Number> fn =  new Flaw<Number>(new Integer(3));
duke@1: 
duke@1:         Flaw<?> m(){return fn;}
duke@1:     }
duke@1: 
duke@1:     public static void main(String[] args) {
duke@1:         SuperOfShowFlaw sosf = new ShowFlaw();
duke@1:         SuperOfFlaw<List<?>> sof = sosf.m();
duke@1:         List<String> ls = new ArrayList<String>();
duke@1:         ls.add("Smalltalk rules!");
duke@1:         sof.put(ls);
duke@1:         Number n = ShowFlaw.fn.get().get(0);
duke@1:     }
duke@1: 
duke@1: }