langtools/test/tools/javac/lambda/8023389/T8023389.java
author vromero
Tue, 03 Sep 2013 23:31:33 +0100
changeset 19916 5b5f188dbdd4
child 30727 a4dac07f827c
permissions -rw-r--r--
8023389: Javac fails to infer type for lambda used with intersection type and wildcards Reviewed-by: jjg, vromero Contributed-by: maurizio.cimadamore@oracle.com
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/*
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 * Copyright (c) 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 8023389
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 * @summary Javac fails to infer type for lambda used with intersection type and wildcards
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 * @compile T8023389.java
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 */
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public class T8023389 {
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    static class U1 {}
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    static class X1 extends U1 {}
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    interface I { }
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    interface SAM<T> {
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        void m(T t);
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    }
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    /* Strictly speaking only the second of the following declarations provokes the bug.
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     * But the first line is also a useful test case.
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     */
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    SAM<? extends U1> sam1 = (SAM<? extends U1>) (X1 x) -> { };
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    SAM<? extends U1> sam2 = (SAM<? extends U1> & I) (X1 x) -> { };
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}