JShell script to connect to JMX server

connect-jmx.jsh

import javax.management.*
import javax.management.remote.*

var serverUrl = "service:jmx:rmi:///jndi/rmi://0.0.0.0:9090/jmxrmi"
var connection = JMXConnectorFactory.connect(new JMXServiceURL(serverUrl)).getMBeanServerConnection()

var objectName = new ObjectName("my-domain:type=my-bean-type,name=my-bean-name")
var pingResult = (int) connection.invoke(objectName, "ping", null, null) // Assumes an `int ping()` method that returns the error code.

/exit pingResult