test/tools/javac/lambda/ErroneousLambdaExpr.java

changeset 1415
01c9d4161882
child 2000
4a6acc42c3a1
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/ErroneousLambdaExpr.java	Sat Nov 17 19:01:03 2012 +0000
     1.3 @@ -0,0 +1,65 @@
     1.4 +/*
     1.5 + * Copyright (c) 2012, 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 8003280
    1.30 + * @summary Add lambda tests
    1.31 + *  stale state after speculative attribution round leads to missing classfiles
    1.32 + */
    1.33 +public class ErroneousLambdaExpr<T> {
    1.34 +
    1.35 +    static int assertionCount = 0;
    1.36 +
    1.37 +    static void assertTrue(boolean cond) {
    1.38 +        assertionCount++;
    1.39 +        if (!cond)
    1.40 +            throw new AssertionError();
    1.41 +    }
    1.42 +
    1.43 +    interface SAM1<X> {
    1.44 +        X m(X t, String s);
    1.45 +    }
    1.46 +
    1.47 +    interface SAM2 {
    1.48 +        void m(String s, int i);
    1.49 +    }
    1.50 +
    1.51 +    interface SAM3<X> {
    1.52 +        X m(X t, String s, int i);
    1.53 +    }
    1.54 +
    1.55 +    void call(SAM1<T> s1) { assertTrue(true); }
    1.56 +
    1.57 +    void call(SAM2 s2) { assertTrue(false); }
    1.58 +
    1.59 +    void call(SAM3<T> s3) { assertTrue(false); }
    1.60 +
    1.61 +    public static void main(String[] args) {
    1.62 +        ErroneousLambdaExpr<StringBuilder> test =
    1.63 +                new ErroneousLambdaExpr<>();
    1.64 +
    1.65 +        test.call((builder, string) -> { builder.append(string); return builder; });
    1.66 +        assertTrue(assertionCount == 1);
    1.67 +    }
    1.68 +}

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