langtools/test/tools/javac/lambda/MethodReference48.java
author vromero
Mon, 02 Sep 2013 22:38:36 +0100
changeset 19914 d86271bd430a
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child 19929 39df7cd8039a
permissions -rw-r--r--
8016177: structural most specific and stuckness Reviewed-by: jjg, vromero Contributed-by: maurizio.cimadamore@oracle.com
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/*
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 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 8003280
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 * @summary Add lambda tests
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 *  check that raw qualifier in unbound method reference is inferred from descriptor
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 * @compile/fail/ref=MethodReference48.out -XDrawDiagnostics MethodReference48.java
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 */
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public class MethodReference48 {
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    static class Foo<X> {
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        X m() { return null; };
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    }
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    interface SAM1 {
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        Foo<Object> m(Foo<String> fs);
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    }
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    interface SAM2 {
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        Integer m(Foo<Integer> fi);
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    }
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    interface SAM3 {
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        Object m(Foo<Integer> fi);
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    }
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    static void g1(SAM1 s) { } //return type not compatible
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    static void g2(SAM2 s) { } //ok
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    static void g3(SAM3 s) { } //ok
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    static void g4(SAM1 s) { } //return type not compatible
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    static void g4(SAM2 s) { } //ok
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    static void g4(SAM3 s) { } //ok
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    public static void main(String[] args) {
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        g1(Foo::m);
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        g2(Foo::m);
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        g3(Foo::m);
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        g4(Foo::m);
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    }
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}