langtools/test/tools/javac/lambda/MethodReference33.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * 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
 *  test bridged constructor references
 */

public class MethodReference33 {

    static int assertionCount = 0;

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

    class Foo {
        Foo(Integer i) { assertTrue(true); }
        Foo() { assertTrue(true); }
    }

    interface BridgeSAMBound<X> {
        X m(int i);
    }

    interface NonBridgeSAMBound<X> {
        X m();
    }

    void test() {
        BridgeSAMBound<Foo> b1 = Foo::new;
        b1.m(1);
        NonBridgeSAMBound<Foo> b2 = Foo::new;
        b2.m();
    }

    public static void main(String[] args) {
        MethodReference33 test = new MethodReference33();
        test.test();
        assertTrue(assertionCount == 2);
    }
}