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WildFly 9

JMX subsystem configuration

The JMX subsystem registers a service with the Remoting endpoint so that remote access to JMX can be obtained over the exposed Remoting connector.

This is switched on by default in standalone mode and accessible over port 9990 but in domain mode is switched off so needs to be enabled - in domain mode the port will be the port of the Remoting connector for the WildFly 8 instance to be monitored.

To use the connector you can access it in the standard way using a service:jmx URL:

import javax.management.MBeanServerConnection;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

public class JMXExample {

    public static void main(String[] args) throws Exception {
        //Get a connection to the WildFly 8 MBean server on localhost
        String host = "localhost";
        int port = 9990;  // management-web port
        String urlString =
            System.getProperty("jmx.service.url","service:jmx:http-remoting-jmx://" + host + ":" + port);
        JMXServiceURL serviceURL = new JMXServiceURL(urlString);
        JMXConnector jmxConnector = JMXConnectorFactory.connect(serviceURL, null);
        MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();

        //Invoke on the WildFly 8 MBean server
        int count = connection.getMBeanCount();

You also need to set your classpath when running the above example.  The following script covers Linux.  If your environment is much different, paste your script when you have it working.


# specify your WildFly 8 folder
export YOUR_JBOSS_HOME=~/WildFly8

java -classpath $YOUR_JBOSS_HOME/bin/client/jboss-client.jar:./ JMXExample

You can also connect using jconsole.

If using jconsole use the jconsole.sh and jconsole.bat scripts included in the /bin directory of the WildFly 8 distribution as these set the classpath as required to connect over Remoting.

In addition to the standard JVM MBeans, the WildFly 8 MBean server contains the following MBeans:

JMX ObjectName



Exposes management operations on the JBoss Modular Service Container, which is the dependency injection framework at the heart of WildFly 8. It is useful for debugging dependency problems, for example if you are integrating your own subsystems, as it exposes operations to dump all services and their current states


Shows what is bound in JNDI


This collection of MBeans exposes management operations on JBoss Modules classloading layer. It is useful for debugging dependency problems arising from missing module dependencies

Audit logging

Audit logging for the JMX MBean server managed by the JMX subsystem. The resource is at /subsystem=jmx/configuration=audit-log and its attributes are similar to the ones mentioned for /core-service=management/access=audit/logger=audit-log in Audit logging.




true to enable logging of the JMX operations


true to log the JMX operations when booting the server, false otherwise


If true all operations will be audit logged, if false only operations that change the model will be logged

Then which handlers are used to log the management operations are configured as handler=* children of the logger. These handlers and their formatters are defined in the global /core-service=management/access=audit section mentioned in Audit logging.

JSON Formatter

The same JSON Formatter is used as described in Audit logging. However the records for MBean Server invocations have slightly different fields from those logged for the core management layer.

2013-08-29 18:26:29 - {
    "type" : "jmx",
    "r/o" : false,
    "booting" : false,
    "version" : "8.0.0.Beta1-SNAPSHOT",
    "user" : "$local",
    "domainUUID" : null,
    "access" : "JMX",
    "remote-address" : "",
    "method" : "invoke",
    "sig" : [
    "params" : [

It includes an optional timestamp and then the following information in the json record

Field name



This will have the value jmx meaning it comes from the jmx subsystem


true if the operation has read only impact on the MBean(s)


true if the operation was executed during the bootup process, false if it was executed once the server is up and running


The version number of the WildFly instance


The username of the authenticated user.


This is not currently populated for JMX operations


This can have one of the following values:
*NATIVE - The operation came in through the native management interface, for example the CLI
*HTTP - The operation came in through the domain HTTP interface, for example the admin console
*JMX - The operation came in through the JMX subsystem. See JMX for how to configure audit logging for JMX.


The address of the client executing this operation


The name of the called MBeanServer method


The signature of the called called MBeanServer method


The actual parameters passed in to the MBeanServer method, a simple Object.toString() is called on each parameter.


If calling the MBeanServer method resulted in an error, this field will be populated with Throwable.getMessage()

JBoss.org Content Archive (Read Only), exported from JBoss Community Documentation Editor at 2020-03-13 13:54:40 UTC, last content change 2014-01-23 01:39:15 UTC.