langtools/test/tools/javac/lambda/SingleLocalTest.java
author rfield
Wed, 30 Apr 2014 23:02:14 -0700
changeset 24225 44f3a7b2ac71
permissions -rw-r--r--
8029852: Bad code generated (VerifyError) when lambda instantiates enclosing local class and has captured variables 8029725: Lambda reference to containing local class causes javac infinite recursion Reviewed-by: vromero, jlahoda, dlsmith

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 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 8029852
 * @summary Bad code generated (VerifyError) when lambda instantiates
 *          enclosing local class and has captured variables
 */
public class SingleLocalTest {
    interface F {void f();}

    static F f;

    public static void main(String[] args) {
        StringBuffer sb = new StringBuffer();
        class Local1 {
            public Local1() {
                f = () -> new Local1();
                sb.append("1");
            }
        }
        new Local1();
        f.f();
        String s = sb.toString();
        if (!s.equals("11")) {
            throw new AssertionError("Expected '11' got '" + s + "'");
        }
    }
}