Problem obtaining MBeanServerConnection object

[barrys52]

Please help!

I am using JBoss 4.0.4.GA and JBoss Messaging 1.0.1.CR2. I am trying to create Messaging queues dynamically. To do this requires that I get a handle to the "jmx/invoker/RMIAdaptor" MBeanServerConnection object. The following code, taken from a JBoss provided example, is causing an exception:

 InitialContext ic = new InitialContext();
 MBeanServerConnection p =
 (MBeanServerConnection)ic.lookup("jmx/invoker/RMIAdaptor");

The exception generated is:

javax.naming.CommunicationException [Root exception is
java.lang.ClassNotFoundException: org.jboss.jmx.adaptor.rmi.RMIAdaptor
(no security manager: RMI class loader disabled)]
at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:729)
at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:588)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
...

============================================
I would appreciate it if someone could explain how to correct this!

Thanks,
Barry

[wengong]

This code worked for me:

 Properties env = new Properties();
 env.setProperty(Context.INITIAL_CONTEXT_FACTORY,
 "org.jboss.naming.HttpNamingContextFactory");

 env.setProperty(Context.PROVIDER_URL,
 "http://[hostname]:8080/invoker/JNDIFactory");

 Context ctx = new InitialContext(env);

 MBeanServerConnection server = (MBeanServerConnection) ctx.lookup("jmx/invoker/RMIAdaptor");

[barrys52]

Unfortunately, that doesn't work for me. This property:

env.setProperty(Context.INITIAL_CONTEXT_FACTORY,
 "org.jboss.naming.HttpNamingContextFactory");

causes the following exception:
"org.jboss.naming.HttpNamingContextFactory");javax.naming.NoInitialContextException: Cannot instantiate class: org.jboss.naming.HttpNamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jboss.naming.HttpNamingContextFactory]

In my original post, I neglected to mention the jndi property settings I'm using. They are defined in a jndi.properties file. Setting the properties in the code instead, I have:

 Properties properties = new Properties();
 properties.put(
 Context.INITIAL_CONTEXT_FACTORY,
 "org.jnp.interfaces.NamingContextFactory");
 properties.put(
 Context.PROVIDER_URL,
 "jnp://localhost:1099");
 properties.put(
 Context.OBJECT_FACTORIES,
 "org.jboss.naming:org.jnp.interfaces");
 InitialContext ic = new InitialContext(properties);
 MBeanServerConnection p =
 (MBeanServerConnection)ic.lookup("jmx/invoker/RMIAdaptor");

That produces the same exception:

javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: org.jboss.jmx.adaptor.rmi.RMIAdaptor (no security manager: RMI class loader disabled)]
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:729)


Any ideas?

Thanks,
Barry

[peterj]

I wonder if your problem is more related to the part of the error message that states "no security manager: RMI class loader disabled". I ran into something like this a couple of weeks ago and had to read up about security managers and the java.policy file and other such fun topics. Googling the portion of the error text I quoted should lead you to several web pages that attempt to explain the problem and how to fix it. (If I ever find the code I had this problem with I will post what I did to get around the problem. I vaguely recall declaring a security manager in my Java code and providing an alternate java.policy file.)

[barrys52]

Problem resolved: It turns out that the problem had nothing to do with lack of a security manager. The problem was that I did not have all the jar files required in my classpath. The jar files are contained in the [jboss_home]/server/messaging/lib directory.