Displays system information from Java/Scala using ManagementFactory and JMX MBean Server

MbeanInfo.scala

import java.lang.management.ManagementFactory
import scala.collection.JavaConversions._
import scala.util.Try

object Test extends App {
  val mbeanServer = ManagementFactory.getPlatformMBeanServer
  for {
    mb <- mbeanServer.queryMBeans(null, null)
    name = mb.getObjectName
  } {
    println(name)
    val info = mbeanServer.getMBeanInfo(name)
    for {
      attr <- info.getAttributes
      attName = attr.getName
      value = Try(mbeanServer.getAttribute(name, attName)).getOrElse("error")
      desc = if (value.isInstanceOf[Array[_]]) value.asInstanceOf[Array[_]].mkString("[", ", ", "]") else value
    } println(s"  $attName=$desc")
  }

}