1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  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
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  23 
  24 /*
  25  * @test
  26  * @bug 6316491
  27  * @summary Check that the MXBean annotation works as advertised
  28  * @author Eamonn McManus
  29  * @modules java.management
  30  * @run clean MXBeanAnnotationTest
  31  * @run build MXBeanAnnotationTest
  32  * @run main MXBeanAnnotationTest
  33  */
  34 
  35 import javax.management.*;
  36 
  37 public class MXBeanAnnotationTest {
  38     @MXBean
  39     public static interface Empty {}
  40 
  41     public static class EmptyImpl implements Empty {}
  42 
  43     @MXBean(false)
  44     public static interface NotMXBean {}
  45 
  46     public static class NotImpl implements NotMXBean {}
  47 
  48     public static void main(String[] args) throws Exception {
  49         MBeanServer mbs = MBeanServerFactory.newMBeanServer();
  50         ObjectName on = new ObjectName("a:b=c");
  51 
  52         // Test empty interface
  53 
  54         try {
  55             mbs.registerMBean(new EmptyImpl(), on);
  56             boolean ok = checkMXBean(mbs.getMBeanInfo(on), true,
  57                                      "empty MXBean interface");
  58             mbs.unregisterMBean(on);
  59             if (ok)
  60                 System.out.println("OK: empty MXBean interface");
  61         } catch (Exception e) {
  62             failure = "MXBean with empty interface got exception: " + e;
  63             System.out.println("FAILED: " + failure);
  64             e.printStackTrace(System.out);
  65         }
  66 
  67         // Test @MXBean(false)
  68 
  69         try {
  70             mbs.registerMBean(new NotImpl(), on);
  71             failure = "Registered a non-Standard MBean with @MXBean(false)";
  72             System.out.println("FAILED: " + failure);
  73         } catch (NotCompliantMBeanException e) {
  74             System.out.println("OK: non-Standard MBean with @MXBean(false) " +
  75                                "rejected");
  76         }
  77 
  78         if (failure == null)
  79             System.out.println("TEST PASSED");
  80         else
  81             throw new Exception("TEST FAILED: " + failure);
  82     }
  83 
  84     private static boolean checkMXBean(MBeanInfo mbi, boolean expected,
  85                                        String what) {
  86         Descriptor d = mbi.getDescriptor();
  87         String mxbean = (String) d.getFieldValue("mxbean");
  88         boolean is = (mxbean != null && mxbean.equals("true"));
  89         if (is == expected)
  90             return true;
  91         else {
  92             failure = "MBean should " + (expected ? "" : "not ") +
  93                 "have mxbean=true: " + d;
  94             return false;
  95         }
  96     }
  97 
  98     private static String failure;
  99 }