1 /*
   2  * Copyright (c) 2005, 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 6331783
  27  * @summary Test that MBeanServer.queryNames doesn't call getMBeanInfo on every
  28  *          resultant MBean when there is no security manager installed.
  29  * @author Luis-Miguel Alventosa
  30  *
  31  * @run clean AvoidGetMBeanInfoCallsTest
  32  * @run build AvoidGetMBeanInfoCallsTest
  33  * @run main AvoidGetMBeanInfoCallsTest
  34  */
  35 
  36 import java.util.Set;
  37 import javax.management.Attribute;
  38 import javax.management.AttributeList;
  39 import javax.management.AttributeNotFoundException;
  40 import javax.management.DynamicMBean;
  41 import javax.management.InvalidAttributeValueException;
  42 import javax.management.MBeanException;
  43 import javax.management.MBeanInfo;
  44 import javax.management.MBeanServer;
  45 import javax.management.MBeanServerFactory;
  46 import javax.management.ObjectName;
  47 import javax.management.ReflectionException;
  48 
  49 public class AvoidGetMBeanInfoCallsTest {
  50 
  51     /**
  52      * Test DynamicMBean class
  53      */
  54     public static class Test implements DynamicMBean {
  55 
  56         public Object getAttribute(String attribute)
  57             throws AttributeNotFoundException,
  58                    MBeanException,
  59                    ReflectionException {
  60             return null;
  61         }
  62 
  63         public void setAttribute(Attribute attribute)
  64             throws AttributeNotFoundException,
  65                    InvalidAttributeValueException,
  66                    MBeanException,
  67                    ReflectionException {
  68         }
  69 
  70         public AttributeList getAttributes(String[] attributes) {
  71             return null;
  72         }
  73 
  74         public AttributeList setAttributes(AttributeList attributes) {
  75             return null;
  76         }
  77 
  78         public Object invoke(String actionName,
  79                              Object params[],
  80                              String signature[])
  81             throws MBeanException,
  82                    ReflectionException {
  83             return null;
  84         }
  85 
  86         public MBeanInfo getMBeanInfo() {
  87             entered = true;
  88             return new MBeanInfo(Test.class.getName(),
  89                                  "Test description",
  90                                  null, null, null, null);
  91         }
  92 
  93         public boolean entered;
  94     }
  95 
  96     /*
  97      * Print message
  98      */
  99     private static void echo(String message) {
 100         System.out.println(message);
 101     }
 102 
 103     /**
 104      * Standalone entry point.
 105      *
 106      * Run the test and report to stdout.
 107      */
 108     public static void main(String args[]) throws Exception {
 109 
 110         echo(">>> Create MBeanServer");
 111         MBeanServer server = MBeanServerFactory.newMBeanServer();
 112 
 113         echo(">>> Default Domain: " + server.getDefaultDomain());
 114 
 115         echo(">>> Create and register Test MBean");
 116         Test mbean = new Test();
 117         ObjectName name = ObjectName.getInstance(":type=Test");
 118         server.registerMBean(mbean, name);
 119 
 120         echo(">>> Set entered flag to false in Test MBean");
 121         mbean.entered = false;
 122 
 123         echo(">>> Query Names:");
 124         Set<ObjectName> names = server.queryNames(null, null);
 125         for (ObjectName on : names) {
 126             echo("\t" + on.toString());
 127         }
 128 
 129         echo(">>> Entered flag = " + mbean.entered);
 130 
 131         if (mbean.entered) {
 132             echo(">>> Test FAILED!");
 133             throw new IllegalArgumentException("getMBeanInfo got called");
 134         } else {
 135             echo(">>> Test PASSED!");
 136         }
 137     }
 138 }