About
J-Development is the in-house Java development department of Kizitos, an Amsterdam based company developing a new way to search and sort the web. J-Development was previously part of M4N, where they developed the leading affiliate marketing network of The Netherlands.
The J-Development team consists of a diverse group of people for whom development is a passion and a “way of life”. Many of us are also outside J-Development active in the development community and started on a young age with computers and programming.
On this web site we would like to introduce our team to the outside world and allow everyone interested a look in the interesting world of JPA, JSP, JSF, Eclipse, PostgreSQL – and all related technologies that make development for Kizitos and the Java EE platform such an interesting thing.
Are you a development enthusiast? We’re always looking for people to which software development is more than just work. If you are a real (Java) guru, then take a look at our vacancies page to see whether there is something of your liking there. Is there no suitable vacancy there, but do you have an interesting idea that you would like to explore together with a professional Java development team? Then send us an email with your proposal. Typically there is a wide range of possibilities for a job or an internship.
Eclipse
- Eclipse 4.5 SR2 released! - 2016-02-26
Another year, another SR release; the Eclipse organization released maintenance release two of Eclipse 4.5 (aka, MARS.2, aka Eclipse 4.5.2) [...] - Mysterious 4.4.1.20150109 Eclipse Luna update is SR1a - 2015-01-15
Two days back I noticed Eclipse had a mysterious update available; Eclipse IDE for Java EE Developers, version 4.4.1.20150109-0740 with [...] - Eclipse 4.4 SR1 once again completely silently released - 2014-09-29
Another year, another SR1 release, another deafining amount of silence; the Eclipse organization released maintance release one of Eclipse 4.4 [...] - Eclipse 4.3 SR1 again silently released! - 2013-09-28
Again rather silently, the Eclipse organization yesterday released the first maintenance release of Eclipse 4.3; Eclipse 4.3.1 aka Eclipse Kepler [...] - Eclipse 4.2 SR1 silently released! - 2012-09-30
Rather silently, the Eclipse organization 2 days ago released the first maintenance release of Eclipse 4.2; Eclipse 4.2.1 aka Eclipse [...] - IntelliJ – The IDE I wanted to love - 2009-06-27
In the Java market we have a plethora of ide’s to choose from. The one I am most familiar with [...] - Ubuntu and Eclipse: The error was ‘BadAlloc (insufficient resources for operation)’. - 2008-01-19
Linux and Eclipse have proved themselves as a killer combination for Java (EE) development. Specially for technology savvy users, [...]
- Eclipse 4.5 SR2 released! - 2016-02-26
Hardware
- Review: world’s first Supermicro 2026TT chassis - 2010-03-10
Just after our house style has been redesigned in blue, we technicians go green. Our intention was to modernize our [...] - 100K+ IOPS on semi-commodity hardware - 2009-06-01
Abstract A while ago we conducted a study to find the fastest IO subsystem that money can buy these days. The [...] - SSD performance improvements set LIVE - 2009-05-22
In a previous blog entry (One DVD per second) we described how we build a new fast SSD based Database [...] - One DVD per second - 2009-02-20
Abstract For modern database systems the main bottleneck is usually IO. In order to speed up our database we conducted a [...] - Building the new battleship Mtron - 2008-11-20
A while back I stumbled upon the legendary article; Battleship Mtron, the absurdly fast RAID array build with 9 Mtron [...]
- Review: world’s first Supermicro 2026TT chassis - 2010-03-10
Java
- Start site - 2006-11-03
Hi mede web gebruikers, Zoals jullie zien is dit de start van deze nieuwe web-site. Welke gevult gaat worden over informatie mbt [...] - Programmeur JAVA J2EE – M4N – Amsterdam - 2007-01-22
Bij M4N in Amsterdam worden Java programmeurs gezocht. We zijn op zoek naar iemand die programmeert in de hoofdapplicatie [...] - Eclipse en Mac OS X - 2007-01-23
Afgelopen week heb ik getracht Eclipse aan de gang te krijgen op Mac OS X. Uiteindelijk draait het wel, maar [...] - Java developers en programmeurs zoeken is een hele kunst - 2008-08-02
Hoe vind je een goede programmeur? Programmeurs hebben verschillende hobby’s, houden van verschillende soorten muziek, hebben verschillende meningen over politiek, [...] - Postgresql the most advanced opensource Database and full text search. - 2009-04-23
We work with Postgresql and are very happy with the performance and the existence of the DB. We are also [...] - @ har2009 and copyright - 2009-08-14
Hi, Op har2009 is het relaxed we hebben een heerlijke snelle uplink van meer dan 10 Gbit/s. Het downloaden van data gaat [...] - a hitchhikers guide to har2009.org galaxy - 2009-08-18
Een kort verslag van “a hitchhikers guide through hackers galaxy: har2009.org“…Ergens op de Nederlandse heide ver weg van de bewoonde wereld in [...] - Van een Ubuntu Lenovo T61 naar een Macbook Pro laptop - 2010-05-17
Ben overgegaan van Ubuntu naar OS X en van Lenovo naar Apple, want mijn laptop lenovo T61 is na een [...] - Eclipse 4.5 SR2 released! - 2016-02-26
Another year, another SR release; the Eclipse organization released maintenance release two of Eclipse 4.5 (aka, MARS.2, aka Eclipse 4.5.2) [...] - Hitachi Cosminexus v10 silently certified for Java EE 7 - 2015-04-28
Every time after a Java EE spec is released it’s somewhat of a battle of who is the first to [...] - First official JSF 2.3 contribution from zeef.com - 2015-01-27
A while back we joined the JSF 2.3 EG as zeef.com. While we had contributed as individuals before (mostly via [...] - Follow JSF 2.3 development via GitHub mirror - 2015-01-17
Currently development for JSF 2.3 is well underway in the trunk of the Mojarra project. The Mojarra project still uses SVN, [...] - Providing alternatives for JSF 2.3’s injected artifacts - 2012-11-06
At the JSF 2.3 EG we’re currently busy with introducing the ability to inject several of JSF’s own artifacts in [...] - Mysterious new Java EE 6 server shows up at Oracle certification pages - 2014-10-31
Oracle publishes a page listing all officially certified Java EE servers. The page has been known to list a couple [...] - BalusC joins JSF 2.3 EG - 2014-09-12
A few weeks ago zeef.com joined the JCP: Welcome to the newest #JCP Corporate Member, ZEEF, represented by Arjan Tijms! — JCP [...] - Eclipse Luna and JDK8 - 2014-06-25
Today marked the launch of Eclipse Luna, which is the first version of Eclipse which ships with Java 8 support [...] - Experiences with migrating from JBoss AS 7 to WildFly 8.1 - 2014-06-24
This month the first major update of WildFly 8 (the base for a future JBoss EAP 7) was released; WildFly [...] - OmniFaces showcase and OpenShift app management - 2014-03-31
At ZEEF.com we’re using OmniFaces pretty intensively (eating our own dog food). We’re hosting an application that showcases a lot of [...] - How to build and run the Mojarra automated tests (2014 update) - 2014-03-30
At zeef.com we depend a lot on JSF (see here for details) and occasionally have the need to patch Mojarra. [...] - Java 7 one-liner to read file into string - 2014-03-24
Reading in a file in Java used to require a lot of code. Various things had to wrapped, loops with [...] - WildFly 8 benchmarked - 2014-02-14
The final version of WildFly 8 was released this week. WildFly is the new Java EE 7 compliant application server [...] - Disabling all EJB timers in Java EE 6 - 2013-10-29
Java EE 7 has finally added a method to obtain all timers in the system. With the help of this [...] - Eclipse 4.3 SR1 again silently released! - 2013-09-28
Again rather silently, the Eclipse organization yesterday released the first maintenance release of Eclipse 4.3; Eclipse 4.3.1 aka Eclipse Kepler [...] - Serving multiple images from database as a CSS sprite - 2013-07-31
Introduction In the first public beta version of ZEEF which was somewhat thrown together (first get the minimum working using standard [...] - Switching between data sources when using @DataSourceDefinition - 2013-05-21
Prior to Java EE 6 setting up and configuring data sources had to be done in a proprietary (vendor specific) [...] - Eclipse 4.2 SR2 released! - 2013-03-02
Today the Eclipse organization released the second maintenance release of Eclipse 4.2; Eclipse 4.2.2 aka Eclipse Juno SR2. This time around [...] - Waarom bij ons werken? - 2013-02-19
- Eclipse 4.2 SR1 silently released! - 2012-09-30
Rather silently, the Eclipse organization 2 days ago released the first maintenance release of Eclipse 4.2; Eclipse 4.2.1 aka Eclipse [...] - Sample CRUD application with JSF and RichFaces - 2012-03-30
During my thesis project I will be using JavaServer Faces. Therefore it is important I get familiar with the framework. [...] - How to run the Mojarra automated tests - 2012-02-26
The JSF RI implementation Mojarra comes with a very extensive test suite. There are some instructions available on how to [...] - Eclipse 3.7 SR2 released! - 2012-02-24
With once again an amazing release accuracy, today Eclipse Indigo Service Release 2, aka Eclipse 3.7.2 has been released. In the [...] - What’s new in JSF 2.2? - 2012-09-01
jsf 2.2 - Try-with-resources in JDK7 without scoped declarations - 2011-09-26
A handy new feature in JDK7 is the try-with-resources statement. This statement is meant to eliminate a lot of the [...] - Integration testing using Arquillian without Maven - 2011-01-25
Over the past year, we have increasingly resorted to the use of EJBs to implement our business logic. In addition [...] - JBoss AS 6 GA released! - 2010-12-29
Today is another historic day for Java, as one of the leading implementations of Java EE, namely JBoss AS, has [...] - Internationalization in JSF with UTF-8 encoded properties files - 2010-10-29
Introduction To internationalize your (web)application, the normal approach is to use the ResourceBundle API in combination with properties files which contains [...] - JBoss AS 6 CR1 released - 2010-11-22
With only one week delay (see JBoss AS 6 release date published) JBoss has today released the first release candidate/candidate [...] - JBoss AS 6 release date published - 2010-09-11
Although JBoss AS 6 CR1 and GA have been on JBoss’ JIRA roadmap for some time, no due date was [...] - Efficient way to determine if a String is a Number - 2010-09-09
Introduction After cloning the M4N projects from Mercurial, one of the first classes I checked was the M4N Common Utils class. [...] - M4N iPhone app on iPad - 2010-02-10
Recently, Apple announced the launch of the iPad. I downloaded the new SDK directly, to try our iPhone application. Unfortunately, [...] - Java EE 6 – release imminent - 2009-10-07
Yesterday the umbrella JSR for Java EE 6 finally released a proposed final draft. This means the release of Java [...] - IntelliJ – The IDE I wanted to love - 2009-06-27
In the Java market we have a plethora of ide’s to choose from. The one I am most familiar with [...] - Jboss AS 5 GA release date - 2008-11-24
People have been wondering for some time about the release date of Jboss AS 5. As many of you know, [...] - Batteleship Mtron-2 - 2009-02-03
This blog entry will be the placeholder for the Mtron benchmark blog - Jboss AS 5 GA released! - 2008-12-05
Today is a historic day for Java, as one of the leading implementations of Java EE 5, Jboss AS 5 [...] - How we won an iPhone dev competition without any prior knowledge - 2008-09-01
About 2 weeks ago one of my team members, Robin Eggenkamp, mentioned there would be some iPhone dev ‘conference’ this [...] - JSF 2.0, a glance - 2008-08-27
Having been recently thrown into the deep waters of JSF and Facelets it seemed natural to do an evaluation of [...] - Foute foutjes - 2012-02-27
Soms zijn de foutmeldingen die een computer je geeft te leuk om weg te klikken. Ik druk dan tegenwoordig steevast [...] - Java EE 6 progress page - 2008-06-28
On this page I will try to keep track about resources related to Java EE 6. This page started as [...] - UI for the People - 2008-04-03
When I first started working with user interface (UI) design the process looked something like this: Take an existing paper [...] - Experiencing working overseas - 2007-10-16
Working in a team with members located in different parts of the world is common today, but it’s maybe not [...] - JDK6 Web start Cache location - 2007-10-08
For a web start deployment of an application it is sometimes necessary to be able to get the location of the [...] - Java best practices 5 – Code to Interface, Access by name and Instance Data - 2007-10-07
In this 5th and final installment of my series on best practices in Java I’ll wrap up with the last [...] - The NullPointerException - 2007-10-04
The NullPointerException in Java (often abbreviated as NPE) is a frequently occurring exception in Java. As most of you probably [...] - The near future… - 2007-09-26
What will the future be like, given the current rapid developments in the world of internet? I shall try [...] - Is it possible for a small company to switch their development language? - 2007-09-25
Lately I’ve been looking at the erlang programming language and found it very much to my liking. Even though I’m not [...] - Java best practices 4 – Native Arrays and Not Using Java 5. - 2007-09-03
In the fourth edition of this series of blogs on best practices in Java I will discuss two more cases [...] - Java best practices 3 – Eating Exceptions and Mixing JSTL with JSF - 2007-08-26
Today we arrived at the third installment about best practices in Java. This time I will be talking about the [...] - Java best practices 2 – Explicit cases - 2007-08-15
This is the second installment of my discussion about various bad practices in Java that I encountered during my work. [...] - Java best practices - 2007-08-11
Within Mbuyu, the company I work with, one of the things I’m responsible for is guarding the quality of our [...] - Start site - 2006-11-03
Hi mede web gebruikers, Zoals jullie zien is dit de start van deze nieuwe web-site. Welke gevult gaat worden over informatie mbt [...]
- Start site - 2006-11-03
Mac OS X
- How we won an iPhone dev competition without any prior knowledge - 2008-09-01
About 2 weeks ago one of my team members, Robin Eggenkamp, mentioned there would be some iPhone dev ‘conference’ this [...]
- How we won an iPhone dev competition without any prior knowledge - 2008-09-01
Scrum
- Scrum, why we use this agile methodology - 2011-01-13
M4N is used to develop its software in an Agile way. We develop in relatively short cycles, we create as [...]
- Scrum, why we use this agile methodology - 2011-01-13
