Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/generics/inference/6365166/NewTest.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,75 @@
     1.4 +/*
     1.5 + * Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/**
    1.28 + * @test
    1.29 + * @bug     6365166
    1.30 + * @summary javac (generic) unable to resolve methods
    1.31 + * @compile NewTest.java
    1.32 + */
    1.33 +
    1.34 +import java.util.*;
    1.35 +
    1.36 +public class NewTest<A,B> {
    1.37 +    private List<A> toAdd;
    1.38 +
    1.39 +    public NewTest(List<A> toAdd) {
    1.40 +        this.toAdd = toAdd;
    1.41 +    }
    1.42 +
    1.43 +    private List<A> getRelated(B b) {
    1.44 +        //some application logic
    1.45 +        //for demo
    1.46 +        return toAdd;
    1.47 +    }
    1.48 +
    1.49 +    @SuppressWarnings("unchecked")
    1.50 +    public <L extends List<? super A>,LF extends Factory<L>> L addOrCreate4(B b,L l,LF lf) {
    1.51 +        if (l == null) {
    1.52 +            l = lf.create();
    1.53 +        }
    1.54 +        ((List<? super A>)l).addAll(getRelated(b)); //to get round the compiler bug
    1.55 +        return l;
    1.56 +    }
    1.57 +
    1.58 +    public static class ListFactory<T>  implements Factory<List<T>>{
    1.59 +        public List<T> create() {
    1.60 +            return new ArrayList<T>();
    1.61 +        }
    1.62 +    }
    1.63 +    public static interface Factory<T> {
    1.64 +        public T create();
    1.65 +    }
    1.66 +
    1.67 +    public static void main(String ... args) {
    1.68 +        ListFactory<Number> lf = new ListFactory<Number>();
    1.69 +        List<Long> longs = new ArrayList<Long>();
    1.70 +        longs.add(new Long(1));
    1.71 +        NewTest<Long,Number> test = new NewTest<Long,Number>(longs);
    1.72 +
    1.73 +        List<Number> ret4 = null;
    1.74 +
    1.75 +        ret4 = test.addOrCreate4(1, ret4,lf);
    1.76 +
    1.77 +    }
    1.78 +}