aoqi@0: /*
aoqi@0:  * Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @test
aoqi@0:  * @bug     6365166
aoqi@0:  * @summary javac (generic) unable to resolve methods
aoqi@0:  * @compile NewTest.java
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: public class NewTest<A,B> {
aoqi@0:     private List<A> toAdd;
aoqi@0: 
aoqi@0:     public NewTest(List<A> toAdd) {
aoqi@0:         this.toAdd = toAdd;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private List<A> getRelated(B b) {
aoqi@0:         //some application logic
aoqi@0:         //for demo
aoqi@0:         return toAdd;
aoqi@0:     }
aoqi@0: 
aoqi@0:     @SuppressWarnings("unchecked")
aoqi@0:     public <L extends List<? super A>,LF extends Factory<L>> L addOrCreate4(B b,L l,LF lf) {
aoqi@0:         if (l == null) {
aoqi@0:             l = lf.create();
aoqi@0:         }
aoqi@0:         ((List<? super A>)l).addAll(getRelated(b)); //to get round the compiler bug
aoqi@0:         return l;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static class ListFactory<T>  implements Factory<List<T>>{
aoqi@0:         public List<T> create() {
aoqi@0:             return new ArrayList<T>();
aoqi@0:         }
aoqi@0:     }
aoqi@0:     public static interface Factory<T> {
aoqi@0:         public T create();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String ... args) {
aoqi@0:         ListFactory<Number> lf = new ListFactory<Number>();
aoqi@0:         List<Long> longs = new ArrayList<Long>();
aoqi@0:         longs.add(new Long(1));
aoqi@0:         NewTest<Long,Number> test = new NewTest<Long,Number>(longs);
aoqi@0: 
aoqi@0:         List<Number> ret4 = null;
aoqi@0: 
aoqi@0:         ret4 = test.addOrCreate4(1, ret4,lf);
aoqi@0: 
aoqi@0:     }
aoqi@0: }