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  */
  30 
  31 import java.lang.reflect.*;
  32 import java.lang.annotation.*;
  33 
  34 /*
  35  * Make sure:
  36  * 1. getAnnotation can be called directly
  37  * 2. getAnnotation can be called reflectively
  38  * 3. generic information methods on the Method object for
  39  * getAnnotation can be called
  40  */
  41 
  42 public class getAnnotationTest {
  43     public static void main (String[] args) throws Throwable {
  44         // Base level
  45         Class c = Class.forName("java.lang.annotation.Retention");
  46         Annotation result  = c.getAnnotation(Retention.class);
  47         // System.out.println("Base result:" + result);
  48 
  49         // Meta level, invoke Class.getAnnotation reflectively...
  50         Class meta_c = c.getClass();
  51         Method meta_getAnnotation = meta_c.getMethod("getAnnotation",
  52                                                      (Retention.class).getClass());
  53 
  54         Object meta_result = meta_getAnnotation.invoke(c, Retention.class);
  55         // System.out.println("Meta result:" + meta_result);
  56 
  57         if (!meta_result.equals(result)) {
  58             throw new RuntimeException("Base and meta results are not equal.");
  59         }
  60 
  61         meta_getAnnotation.getGenericExceptionTypes();
  62         meta_getAnnotation.getGenericParameterTypes();
  63         meta_getAnnotation.getGenericReturnType();
  64     }
  65 }