1 /*

     2  * Copyright (c) 2012, 2013, 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 8015701

    27  * @summary javac should generate method parameters correctly.

    28  * @compile -parameters AnonymousParameters.java

    29  * @run main AnonymousParameters

    30  */

    31 import java.lang.Class;

    32 import java.lang.reflect.Constructor;

    33 import java.lang.reflect.Parameter;

    34 import java.util.concurrent.Callable;

    35 

    36 public class AnonymousParameters {

    37 

    38     String[] names = {

    39         "this$0",

    40         "val$message"

    41     };

    42 

    43     public static void main(String... args) throws Exception {

    44         new AnonymousParameters().run();

    45     }

    46 

    47     void run() throws Exception {

    48         Class<?> cls = new ParameterNames().makeInner("hello").getClass();

    49         Constructor<?> ctor = cls.getDeclaredConstructors()[0];

    50         Parameter[] params = ctor.getParameters();

    51 

    52         if(params.length == 2) {

    53             for(int i = 0; i < 2; i++) {

    54                 System.err.println("Testing parameter " + params[i].getName());

    55                 if(!params[i].getName().equals(names[i]))

    56                     error("Expected parameter name " + names[i] +

    57                           " got " + params[i].getName());

    58             }

    59         } else

    60             error("Expected 2 parameters");

    61 

    62         if(0 != errors)

    63             throw new Exception("MethodParameters test failed with " +

    64                                 errors + " errors");

    65     }

    66 

    67     void error(String msg) {

    68         System.err.println("Error: " + msg);

    69         errors++;

    70     }

    71 

    72     int errors;

    73 }

    74 

    75 class ParameterNames {

    76 

    77     public Callable<String> makeInner(final String message) {

    78         return new Callable<String>()  {

    79             public String call() throws Exception {

    80                 return message;

    81             }

    82         };

    83     }

    84 

    85     public static void main(String... args) throws Exception {

    86         ParameterNames test = new ParameterNames();

    87         System.out.println(test.makeInner("Hello").call());

    88     }

    89 }