System/JVM metrics - SystemMemoryUsageLoadMetric
9.2.2. SystemMemoryUsageLoadMetric Returns system memory usage Requires com.sun.management.OperatingSystemMXBean (available in Sun's JDK or OpenJDK) Uses OperatingSystemLoadMetricSource to generically read attributes e.g. @org.jboss.aop.microcontainer.aspects.jmx.JMX(name="jboss.web:service=SystemMemoryUsageLoadMetric",exposedInterface=org.jboss.modcluster.load.metric.LoadMetricMBean.class)