Technology weblog

Friday May 01, 2020

Rigorous SOLID leads to functional programming

If you take the SOLID principles to their extremes, you arrive at something that makes Functional Programming looks quite attractive:

Wednesday Jan 30, 2019

OKRs versus KPIs

In this post a nice analogon can be found illustrating the difference between OKRs and KPIs:

OKRs vs KPIs

Friday Jan 04, 2019

Brilliant comic introducing Kubernetes

Please find here a brilliant comic introducing Kubernetes.

Wednesday Sep 06, 2017

The death of software architecture

In my series "the death of...":

Wednesday Jan 06, 2010

Draw your UML diagrams online

A colleague of mine recommended me the site, which allows you to draw UML diagrams that look as if they were drawn by hand. Moreover, a drawing is created by entering commands in a text box, which enforces a uniform lay-out that hides all issues related to typsetting, which people normally can't get right and/or consistent. Check this tool out! 


Wednesday Oct 21, 2009

IntelliJ went open source

According to this announcement, IntelliJ went open source. Combined with the fact that the people using this IDE are among the better Java developers I know, this should be a decisive argument to take a closer look at it at home. 

Monday Oct 05, 2009

Contract Crawler 2.1.0 released

Contract Crawler 2.1.0 has been released, featuring a new front-end for mobile devices, read more on this blog.

Wednesday Mar 25, 2009

First day at ApacheCon Europe 2009

Today I attended a number of talks, including Embrace OSGi - A Developer's Quickstart by Carsten Ziegeler, Lucene Case Studies by Erik Hatcher, OSGi as Framework for Building a Product Line: Experience and Best Practices by Ruwan Linton, Running Hadoop in de Cloud by Tom White, Content storage with Jackrabbit by Jukka Zitting and Rapid JCR applications development with Sling by Bertrand Delacretaz.

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Friday Dec 05, 2008

Tomcat OutOfMemoryError: PermGen space

Recently, I was confronted with yet another java.lang.OutOfMemoryError: PermGen space. This time it was Tomcat, getting completely stuck after typically one or two days (/etc/init.d/tomcat-6 stop would fail!). I have a couple of applications deployed on Tomcat, and indeed these applications are predominantly based on Hibernate and Spring. Browsing on the Internet immediately made it clear to me that tracking the real cause was going to be a time-consuming activity.[Read More]

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