langtools/test/tools/javac/lambda/MethodReference44.java
author vromero
Wed, 23 Jan 2013 20:57:40 +0000
changeset 15384 5a8d00abf076
parent 14547 86d8d242b0c4
child 19914 d86271bd430a
permissions -rw-r--r--
8006694: temporarily workaround combo tests are causing time out in several platforms Reviewed-by: jjg Contributed-by: maurizio.cimadamore@oracle.com

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

/*
 * @test
 * @bug 8003280
 * @summary Add lambda tests
 *  check that generic method reference is inferred when type parameters are omitted
 * @run main MethodReference44
 */
public class MethodReference44 {

    static int assertionCount = 0;

    static void assertTrue(boolean cond) {
        assertionCount++;
        if (!cond)
            throw new AssertionError();
    }

    static class SuperFoo<X> { }

    static class Foo<X extends Number> extends SuperFoo<X> { }

    interface SAM1 {
        SuperFoo<String> m();
    }

    interface SAM2 {
        SuperFoo<Integer> m();
    }

    interface SAM3 {
        SuperFoo<Object> m();
    }

    static <X extends Number> Foo<X> m() { return null; }

    static void g(SAM1 s) { assertTrue(false); }
    static void g(SAM2 s) { assertTrue(true); }
    static void g(SAM3 s) { assertTrue(false); }

    public static void main(String[] args) {
        g(MethodReference44::m);
        assertTrue(assertionCount == 1);
    }
}