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* Welcome Kees Jan Koster

Jeanne Boyarsky
author & internet detective

Joined: May 26, 2003
Posts: 33117

This week, we're delighted to have Kees Jan Koster helping to answer questions about Java-Monitor.

The promotion starts Tuesday, October 15th 2013 and will end on Friday, October 18th 2013.

Kees Jan Koster specializes in performance tuning of large, distributed systems. As an entrepreneur Kees Jan is the founder and driving force behind Java-monitor, now available as a widget in the Tomcat forum of this site.

Java-monitor was born as a tool to fix some of the problems that jconsole and JMX in general had. It displays the wealth of information that your JVM publishes via JMX in an easy to understand manner. The data is collected outside your JVM, minimising run-time impact and allowing Java-monitor to notify you when your JVM is not longer responsive.

More details and getting started guide can be found here:

As a widget on CodeRanch it is especially useful. If you see a problem that you need help with, Java-monitor makes it easy for you to post a graph into a new forum thread. No need to make screenshots and futz with uploading attachments. Just click "post" and ask your question.

Winners of this tool promo have a choice between a Java-monitor Kick-start session (normally US$250) or a full year of Java-monitor Platinum for free for 5 JVM's of your choice. And yes, we will be drawing four winners; what a deal.

Please see the Book Promotion page to ensure your best chances at winning!

Posts in this welcome thread are not eligible for the drawing, and should be reserved for welcoming the author. Questions posted in this topic are subject to removal.

PS. In case you are worried: No, Java-monitor does not have access to the e-mail address you registered with CodeRanch or any other personal information. Only your user name is shared for formatting the notification e-mails.

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Chan Ag

Joined: Sep 06, 2012
Posts: 1089
Welcome, Kees Jan Koster. And that was a very nice description, Jeanne.

Kees Jan Koster
JavaMonitor Support

Joined: Mar 31, 2009
Posts: 251
Dear Chan,

Thank you an nice to meet you. I hope you find Java-monitor useful.

Kees Jan

Java-monitor, JVM monitoring made easy <- right here on Java Ranch
Cameron Wallace McKenzie
author and cow tipper
Saloon Keeper

Joined: Aug 26, 2006
Posts: 4968

Not sure if anyone had noticed, but we did a nice little bit of cross-promotion of the CodeRanch and java-monitor over at TheServerSide with a couple of articles we pushed:

Is your Java Virtual Machine running unmonitored?

How to prevent unscheduled JVM downtime with java-monitor

Kees Jan Koster
JavaMonitor Support

Joined: Mar 31, 2009
Posts: 251
Dear All,

I fixed an issue with the SMS configuration page not showing up. You can now go to and enter your phone number if you would like to receive SMS messages from Java-monitor.

Kees Jan
I agree. Here's the link:
subject: * Welcome Kees Jan Koster
It's not a secret anymore!