1 /*

     2  * Copyright 2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4979440

    27  * @summary Test for signature parsing corner case

    28  * @author Joseph D. Darcy

    29  * @compile -source 1.5 getAnnotationTest.java

    30  * @run main getAnnotationTest

    31  */

    32 

    33 import java.lang.reflect.*;

    34 import java.lang.annotation.*;

    35 

    36 /*

    37  * Make sure:

    38  * 1. getAnnotation can be called directly

    39  * 2. getAnnotation can be called reflectively

    40  * 3. generic information methods on the Method object for

    41  * getAnnotation can be called

    42  */

    43 

    44 public class getAnnotationTest {

    45     public static void main (String[] args) throws Throwable {

    46         // Base level

    47         Class c = Class.forName("java.lang.annotation.Retention");

    48         Annotation result  = c.getAnnotation(Retention.class);

    49         // System.out.println("Base result:" + result);

    50 

    51         // Meta level, invoke Class.getAnnotation reflectively...

    52         Class meta_c = c.getClass();

    53         Method meta_getAnnotation = meta_c.getMethod("getAnnotation",

    54                                                      (Retention.class).getClass());

    55 

    56         Object meta_result = meta_getAnnotation.invoke(c, Retention.class);

    57         // System.out.println("Meta result:" + meta_result);

    58 

    59         if (!meta_result.equals(result)) {

    60             throw new RuntimeException("Base and meta results are not equal.");

    61         }

    62 

    63         meta_getAnnotation.getGenericExceptionTypes();

    64         meta_getAnnotation.getGenericParameterTypes();

    65         meta_getAnnotation.getGenericReturnType();

    66     }

    67 }