Lean overheid

Quite a while, my top posting was about waste at the government.  Now something more positive on waste, and other lean subjects: I recently read the book ‘Een lean overheid‘.…

Filesystem notifications in Java

Inspired by an OS that went in oblivion some years ago (BeOS) operating systems as Windows, Linux and MacOS all have ways to monitor directories for changes built into the…

Money waste at the government

The (Dutch) website Computable has a interesting article on how awful it is the government wastes enormous amounts of money on it-projects. With that regard a report by System Error…

Databases on SSD

SSD disk are becoming increasingly popular. As they read faster, you might consider running databases such as Oracle DBMS, MySQL or non-sql databases. However, interestingly, originally databases are optimized for…

Diginotar

I just updated my (virtual) server, on which this weblog is running too. The update log was rather interesting this time: Setting up tzdata-java (2011j-0ubuntu0.11.04) … Setting up ca-certificates (20090814+nmu2ubuntu0.1)…

Serializable Exception in Java

When  you use Wicket as webfrontend framework to build your application, sooner or later you’ll encounter the NotSerializableException. This is because Wicket will want to serialize any state you have…

OpenID from my website

A lot of websites now provide a way to authenticate yourself via OpenID. That way, you don’t have to remember a separate username and password to login to such a…

Slow right click on Windows

Besides by Mac laptop I have a Windows desktop at home. Windows 7 is all in all quite a nice OS. However, after using Windows for a while, Windows seems…

Wicket Exception when using wrong order in addComponent

Today I working on a application that uses the Wicket framework. I was plagued with the following Exception: WicketMessage: org.apache.wicket.WicketRuntimeException: component myForm:myTable:editor not found on page nl.gerbrand-ict.gui.HomePage[id = 4], listener…

JavaFX 2.0

Yesterday I attended a NLJug meeting at Oracle at De Meern on JavaFX, called ‘JavaFX 2.0 EA‘. The meeting was presented by Roger Brinkley, who’s a called ‘Community leader’, of…