langtools/test/tools/javac/lambda/LambdaParenGeneric.java
author rfield
Sun, 22 Dec 2013 21:57:01 -0800
changeset 22168 a48fe7ec473d
permissions -rw-r--r--
8030626: java.lang.VerifyError: Bad return type when lambda's body is in parentheses Summary: properly type convert the body of a lambda expression (forward port to JDK9 of 8029558) Reviewed-by: vromero
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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 8029558
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 * @summary VerifyError lambda body is parenthesized generic value
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 * @author  Robert Field
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 * @run main LambdaParenGeneric
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 */
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public class LambdaParenGeneric {
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    @FunctionalInterface
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    public interface FI {
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        Integer apply();
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    }
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    public static class Val<A> {
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        A value;
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        Val(A v) { value = v; }
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    }
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    public static void main(String[] args) {
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        FI inc = () -> (new Val<Integer>(77).value);
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        System.out.println(inc.apply());
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    }
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}