MX4J note


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Trying to run MX4J 3.0.1 examples...


javax.management.NotCompliantMBeanException: MBean is not compliant


 C:\usr\local\mx4j-3.0.1\examples>java -cp \usr\local\lib\mx4j.jar;. mx4j.example
 s.services.relation.RelationServiceExample
 Creating RelationService in the MBeanServer
 ----------------------- done ----------------------------
 create the relationType
 The RelationType Names found in the RelationService: [personal_library]
 ----------------------- done ----------------------------
 create RelationId for the relationType
 ----------------------- done ----------------------------
 Creating MBeans to represent our relations
 Could Not create the RelationService: javax.management.ReflectionException: The
 MBean class could not be loaded by the context classloader
 javax.management.ReflectionException: The MBean class could not be loaded by the
  context classloader
         at com.sun.jmx.mbeanserver.MBeanInstantiatorImpl.loadClass(Unknown Sourc
 e)
         at com.sun.jmx.mbeanserver.MBeanInstantiatorImpl.findClass(Unknown Sourc
 e)
         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(Unk
 nown Source)
         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(Unk
 nown Source)
         at com.sun.jmx.mbeanserver.JmxMBeanServer.createMBean(Unknown Source)
         at mx4j.examples.services.relation.RelationServiceExample.setUpRelations
 (RelationServiceExample.java:93)
         at mx4j.examples.services.relation.RelationServiceExample.main(RelationS
 erviceExample.java:337)
 Caused by: java.lang.ClassNotFoundException: mx4j/examples/services/relation/Sim
 pleBooks
         at java.lang.Class.forName0(Native Method)
         at java.lang.Class.forName(Unknown Source)
         ... 7 more
 Cleaning up......

 // Some docs on the net suggests using a property...

 C:\usr\local\mx4j-3.0.1\examples>java -Djavax.management.builder.initial=mx4j.se
 rver.MX4JMBeanServerBuilder -cp \usr\local\lib\mx4j.jar;. mx4j.examples.services
 .relation.RelationServiceExample
 Creating RelationService in the MBeanServer
 ----------------------- done ----------------------------
 create the relationType
 The RelationType Names found in the RelationService: [personal_library]
 ----------------------- done ----------------------------
 create RelationId for the relationType
 ----------------------- done ----------------------------
 Creating MBeans to represent our relations
 Could Not create the RelationService: javax.management.NotCompliantMBeanExceptio
 n: MBean is not compliant
 javax.management.NotCompliantMBeanException: MBean is not compliant
         at mx4j.server.MX4JMBeanServer.registerImpl(MX4JMBeanServer.java:818)
         at mx4j.server.MX4JMBeanServer.createMBean(MX4JMBeanServer.java:745)
         at mx4j.examples.services.relation.RelationServiceExample.setUpRelations
 (RelationServiceExample.java:93)
         at mx4j.examples.services.relation.RelationServiceExample.main(RelationS
 erviceExample.java:337)
 Cleaning up......

 // It still fails !!
 // Tried 1.4...

 C:\usr\local\mx4j-3.0.1\examples>\j2sdk1.4.2_08\bin\java -cp \usr\local\lib\mx4j
 .jar;. mx4j.examples.services.relation.RelationServiceExample
 Created MBeanServer with ID: 158b649:108629c5b34:-8000:dcube:1
 Creating RelationService in the MBeanServer
 ----------------------- done ----------------------------
 create the relationType
 The RelationType Names found in the RelationService: [personal_library]
 ----------------------- done ----------------------------
 create RelationId for the relationType
 ----------------------- done ----------------------------
 Creating MBeans to represent our relations
 Could Not create the RelationService: javax.management.NotCompliantMBeanExceptio
 n: MBean is not compliant
 javax.management.NotCompliantMBeanException: MBean is not compliant
         at mx4j.server.MX4JMBeanServer.registerImpl(MX4JMBeanServer.java:818)
         at mx4j.server.MX4JMBeanServer.createMBean(MX4JMBeanServer.java:745)
         at mx4j.examples.services.relation.RelationServiceExample.setUpRelations
 (RelationServiceExample.java:93)
         at mx4j.examples.services.relation.RelationServiceExample.main(RelationS
 erviceExample.java:337)
 Cleaning up......

 // It still does not work!!


基本に戻って HelloWorldExample


やはり、そのままでは動かない...

Java 5.0 では Server を取得し、MBean を登録するだけで、後は適切な
com.sun.management.jmxremote プロパティを指定すればそれで JConsole
からみえるようになるが、MX4J ではそうはならない。コネクタ周りの造りが
違うということだ。

mx4j.examples.remote.simple.Server から名前登録らしき部分を
借用。しかし、このままでは bind のエラーが出る。おそらく JBoss が
同じように 1099 に rmiregistry サービスを起動しているため。
JBoss をとめると最終的には動作した。

動作するまでに、いくつか ClassNotFoundException を解決する
必要があった。mx4j.jar はすべてを含んでいるわけではなく、
mx4j-remote.jar, mx4j-tools.jar もクラスパスに含める必要が
あった。

     // Create an instance of MBeanServer
     MBeanServer server = MBeanServerFactory.createMBeanServer();

     // Create an ObjectName for the MBean
     ObjectName name = new ObjectName(":mbean=helloworld");

     // Create and register the MBean in the MBeanServer
     server.createMBean("mx4j.examples.mbeans.helloworld.HelloWorld", name, null);

     // Invoke a method on it
     server.invoke(name, "reloadConfiguration", new Object[0], new String[0]);

 ///////////////////// Begin Additional Code
     ObjectName namingName = ObjectName.getInstance("naming:type=rmiregistry");
     server.createMBean("mx4j.tools.naming.NamingService", namingName, null);
     server.invoke(namingName, "start", null, null);
     
     int namingPort = ((Integer)server.getAttribute(namingName, "Port")).intValue();
     // int namingPort = 1099;
     String jndiPath = "/jmxconnector";
     JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://localhost/jndi/rmi://localhost:" + namingPort + jndiPath);
      
     // Create and start the RMIConnectorServer
     JMXConnectorServer connectorServer = JMXConnectorServerFactory.newJMXConnectorServer(url, null, server);
     connectorServer.start();
     
     System.out.println("namingPort="+namingPort);
 ///////////////////// End Additionall Code

     // Invoke an attribute on it
     Integer times = (Integer)server.getAttribute(name, "HowManyTimes");

     System.out.println("The configuration was reloaded " + times + " times.");

     try { Thread.sleep(1000*1000); } catch (Exception e) {}

MC4J 1.2 beta 9 で接続を確認。コネクタタイプは JSR160 で属性は次のとおり

Auto Connecte No
classPathEntries []
Connection Name Hello
Credentials <blank>
Initial Context Factory com.sun.jndi.rmi.registry.RetistryContext
JNDI Name <blank>
libraryRUI null
Live Tree No
Principal <blank>
Server URL service:jmx:rmi:///jndi/rmi://localhost:1099/jmxconnector
Connection Type <no property editor>
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