1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 8143217

    27  * @summary javac throws NPE when printing diagnostics for Lambda expressions

    28  * @compile XDdumpLambdaToMethodStats.java -XDdumpLambdaToMethodStats

    29  *

    30  */

    31 

    32 /*

    33  * Note: No golden file since the crash is reproducible only when raw

    34  *       diagnostics are not in effect.

    35 */

    36 

    37 public class XDdumpLambdaToMethodStats {

    38     public static void main(String... a) {

    39         new XDdumpLambdaToMethodStats().run();

    40     }

    41 

    42     public void run() {

    43         printHash(this::m);

    44         printHash(XDdumpLambdaToMethodStats::sm);

    45         printHash(() -> { o = new Object(); });

    46         printHash(() -> { s = new Object(); });

    47     }

    48 

    49     private void printHash(Runnable function) {

    50         System.out.println(function + "; hash=" + function.hashCode());

    51     }

    52 

    53     private static void sm() {

    54     }

    55 

    56     private void m() {

    57     }

    58 

    59     private Object o;

    60     private static Object s;

    61 }