langtools/test/tools/javac/generics/inference/8141613/T8141613.java
author mcimadamore
Tue, 10 Nov 2015 11:49:14 +0000
changeset 33708 99085a01b536
permissions -rw-r--r--
8141613: Compiler fails to infer generic type Summary: Repeated capture of same expression leads to erroneous inference constraints Reviewed-by: vromero
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/*
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 * Copyright (c) 2015, 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.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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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 8141613
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 * @summary Compiler fails to infer generic type
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 * @compile T8141613.java
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 */
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class T8141613 {
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    static class Sub<V, L> implements Sup<V, L> {
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        Sub(Bar<V> barv) { }
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    }
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    interface Bar<V> { }
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    interface Sup<V, L> { }
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    <L> void test() {
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        Sup<?, L> res1 = makeSub(makeBar());
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        Sup<?, L> res2 = new Sub<>(makeBar());
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    }
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    <S, U> Sub<S, U> makeSub(Bar<S> bars) { return null; }
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    <B> Bar<?> makeBar() {
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        return null;
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    }
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}