getting RMI JMX Server Stub from wihin a tomcat MBean itself
Hello,
to my environment:
- java 1.5
- tomcat 5.5
i am trying to access remote mbeans from my web-app instances running on different machines for some clustering purpose. in general i am trying to access the oher remote mbeans from within a mbean itself using a rmi stub wrapped in some kind of a jmx server class like this:
class JMXServer{
String name;
String host;
String port;
private SystemAccessMBean systemAccess;// the remotes mbean inerface
...
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"+this.host+":"+this.port+"/jmxrmi");
JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
ObjectName mbeanName = new ObjectName(SystemAccessMBean.NAME);
this.systemAccess = SystemAccessMBean)MBeanServerInvocationHandler.newProxyInstance(mbsc, mbeanName, SystemAccessMBean.class, false);
...
}
the problem is that when i try to use this code outside the tomcat context it works fine but from wihin this mbean in tomcat it causes troubles:
...
java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory]
[exec]at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:317)
[exec]at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:248)
...
i found the missing classes in tomcat/common/lib/naming-factory.jar . however i do not know where to include this right (tried several locaions) nor what this class is all about or what i am probably misunderstanding here. the purpose of all this is that i want to get some of my mbeans working with each other on different machines using rmi stubs.
1) how do i get around the error ?
2) is this approach useful ?
thanks in advance for your help,
Michael
