How to get JMX connection in JBoss fuse

Question

Im try to get JMX connection from JBoss fuse, to count number of pending messages in ActiveMQ but im not able to get JMX connection. It always ends with exception

JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://0.0.0.0:44444/jndi/rmi://0.0.0.0:1099/karaf-root");
JMXConnector jmxc = JMXConnectorFactory.connect(url);

Exception below:

java.lang.IllegalArgumentException: Expected String[2], got null
    at org.apache.karaf.management.JaasAuthenticator.authenticate(JaasAuthenticator.java:46)
    at javax.management.remote.rmi.RMIServerImpl.doNewClient(RMIServerImpl.java:232)
    at javax.management.remote.rmi.RMIServerImpl.newClient(RMIServerImpl.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346)
    at sun.rmi.transport.Transport$1.run(Transport.java:200)
    at sun.rmi.transport.Transport$1.run(Transport.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)
    at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:162)
    at javax.management.remote.rmi.RMIServerImpl_Stub.newClient(Unknown Source)
    at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2430)
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:308)
    at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)

Answer 1

You are missing required credentials.

Looking at this tutorial you need to provide credentials to the JMXConnectorFactory

Map env = ...;
String[] creds = {"monitorRole", "mrpasswd"};
env.put(JMXConnector.CREDENTIALS, creds);
JMXConnector cc = JMXConnectorFactory.connect(url, env);