JConsole and MX4J - Unable to connect.

Question

Hi, I am trying to connect to an application that uses MX4J for its JMX monitoring, but I am unable to connect to any remote or local JVMs.
Java version=1.6.0_01-b06
I can see my local process but if I try connect to it I just get the info window saying connecting to <and then the pid number>, but never connects.
If I try connect to the remote process using the server host and port it tries for a long time before it fails to connect.
service:jmx:rmi:///jndi/rmi://host:port/myconnector
Firstly can you use JConsole if you are using MX4J?
Is there a log file that gives more info about the failed connection?
Any ideas would be appreciated:
Thanks,
Shawn

Answer 1

I will answer my own question.
Yes you can use MX4J with JConsole. The problem I was having was because of the way we block our main thread.
When we start our services we kick off a new thread from the main thread and then our main thread goes into a wait where it listens for IO from the user using the System.in.
BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
String in = null;
do {
// Waits for user input from the console
in = r.readLine(); //blocks the main thread, this blocks the JConsole from being attaching to the MBeanServer
Shawn
www.whatjar.co.uk