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About Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Get JVM up time

This is an example of how to get the JVM up time. We are using the We are using the RuntimeMXBean, that is the management interface for the runtime system of the Java virtual machine. Getting the JVM up time implies that you should:

  • Get the JVM’s thread system bean, that is the RuntimeMXBean, using the getRuntimeMXBean() API method of ManagementFactory.
  • Use getUptime() API method of RutimeMXBean. This method returns the uptime of the Java virtual machine in milliseconds.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
public class GetJVMUpTime {
	public static void main(String[] args) {

     	RuntimeMXBean bean = ManagementFactory.getRuntimeMXBean();
  // Get JVM up time and print it

  double upTime = bean.getUptime();

  System.out.println("JVM up time = " + upTime + " ms");


JVM up time = 23.0 ms

This was an example of how to get the JVM up time in Java.

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