test/tools/javac/generics/inference/6365166/NewTest.java

Thu, 16 Oct 2008 07:39:53 -0700

author
jjg
date
Thu, 16 Oct 2008 07:39:53 -0700
changeset 145
2c1ef6ec9413
parent 1
9a66ca7c79fa
child 290
d4828eba4939
permissions
-rw-r--r--

6759810: bad regression test causes source file to be deleted
Reviewed-by: mcimadamore

     1 /*
     2  * Copyright 2005-2007 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  */
    24 /**
    25  * @test
    26  * @bug     6365166
    27  * @summary javac (generic) unable to resolve methods
    28  * @ignore  waiting for 6365166
    29  * @compile NewTest.java
    30  */
    32 import java.util.*;
    34 public class NewTest<A,B> {
    35     private List<A> toAdd;
    37     public NewTest(List<A> toAdd) {
    38         this.toAdd = toAdd;
    39     }
    41     private List<A> getRelated(B b) {
    42         //some application logic
    43         //for demo
    44         return toAdd;
    45     }
    47     @SuppressWarnings("unchecked")
    48     public <L extends List<? super A>,LF extends Factory<L>> L addOrCreate4(B b,L l,LF lf) {
    49         if (l == null) {
    50             l = lf.create();
    51         }
    52         ((List<? super A>)l).addAll(getRelated(b)); //to get round the compiler bug
    53         return l;
    54     }
    56     public static class ListFactory<T>  implements Factory<List<T>>{
    57         public List<T> create() {
    58             return new ArrayList<T>();
    59         }
    60     }
    61     public static interface Factory<T> {
    62         public T create();
    63     }
    65     public static void main(String ... args) {
    66         ListFactory<Number> lf = new ListFactory<Number>();
    67         List<Long> longs = new ArrayList<Long>();
    68         longs.add(new Long(1));
    69         NewTest<Long,Number> test = new NewTest<Long,Number>(longs);
    71         List<Number> ret4 = null;
    73         ret4 = test.addOrCreate4(1, ret4,lf);
    75     }
    76 }

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