Xebia Blog

Today was the last day of the JavaOne Conference. We came to the point when a lot of OutOfMemoryErrors where thrown. We just managed to squeeze in the last sessions.

Today's keynote was all about toys. The guys from the Netbeans team showed some new features such as a JavaScript editor (which contains code completion), Sentilla showed there small sensor thingies, which you can program to gather information, such as acceleration, temperature etc.., LiveScribe showed there very cool pen and lots more.

Today's topic included:

• User Experience
• SOA
• Semantic Web

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Filed under: Java, JavaOne, SOA, Usability
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Today was the third day of the conference. Another couple of hours to go and then it is all over again. The fatigue is kicking in, and we're starting to run on reserve power. The topics of today included:

• Mylyn
• Groovy
• Semantic Web
• SOA
• OSGi

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Filed under: Groovy, Java, JavaOne, SOA
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Call me old-skool, but I don't like pulling in huge frameworks like Acegi for some simple authentication and authorization stuff. This post will show you how I connected Wicket security to an LDAP through JAAS. This leverages the LDAP configuration and access on the appserver level and keeps the application clean. This was done on JBoss, so YMMV on another server, but this post should help you along when you need to tweak the solution.

Caveat: this solution does NOT get you logged in as far as the appserver is concerned, so you'll not be able to use container calls like isUserInRole(). If you find out how, let me know. For our purposes we didn't need it, but it's nice to know anyway.

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Filed under: Java, Security
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Today was the second day of the JavaOne 2008. Besides doing a lot of chatting in the JavaOne pavillion, and visiting all the cool parties this night, we also went to a number of sessions. Also today the NLJug had the James Gosling meeting we won for being the biggest JUG out here. After a long day of work, we finally had time to relax at the Adobe party and at the SDN party.

Todays topics included:

• Closures
• JavaFx, Groovy and Google Android
• Swing GUI testing
• Scripting

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Filed under: Groovy, Java, JavaOne, Oracle, SOA, Testing
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We're here at the JavaOne Conference in San Francisco. Today the JavaOne conference kicked off. The coming 75 hours are packed with Java, Java and more Java! To give an impression of what we're seeing here, we will provide you with a daily blog.

Today's higlights included:

• SCA (service component architecure)
• GlassFish
• JavaFX
• Effective Java and defective Java

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Filed under: Java, JavaOne, SOA
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Currenttly, I'm in the process of building a Grails application. While I've built several prototypes/quick hacks, this is actually the first 'real' application I'm building. "So", I thought, "if this is a real application, I'm in need of some real tests!". When you're in the normal flow of developing a Grails application, everything goes so fast, you almost forget about writing the tests. So I decided to do it a bit differently, and do it just like in Java: do it TDD!
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Filed under: Java, Testing
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At April the 4th, 2008, we held another one of our quarterly Tech Rallies. A Tech Rally, as the name implies, is a whole day of technical training for the whole Software Development department.

The subject of an ITR can be almost anything, as long as it's technically focused, or related to our work. For example, previous Tech Rallies were about Ruby, Grails, CSS/Javascript/Ajax and Oracle Databases, to name a few. This time, our Tech Rally was about creating the best SCRUM tool ever. Quite a challenge, when you've only got 8 hours, but to give a quick conclusion: the results were very impressive. It's quite challenging to organize an event like this, so to put a bit of focus on the fun and team aspects, the group was divided into smaller groups (of approx. 4 people in size) and could pick the technologies of their liking.
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Filed under: Java
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These days a lot of big organizations are spending a good amount of money on making their websites more usable. And you may want to know why?

Think about a Fortune 50 organization (with around 100 thousands employee strength) which has many web applications working across the organization. It may have intranet applications, some business applications etc to facilitate business in effective way. These organizations spend a lot of money on IT spending and generally require many new applications every quarter. Now think about a case where all these new web based applications are different in their look and feel (navigation, fonts, colors etc) from each other.
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Filed under: Java, Usability
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The aim of this blog is to introduce the audience about JMatter framework and its features and capabilities.

JMatter is a software application framework. It is designed specifically for building business software applications for work groups. Variety of applications can be developed using JMatter like accounting software, software for legal firms etc.

The main advantage of JMatter applications is the massive reduction in the development time. Development time is unbelievably small when compared to traditional methods of developing software.

Let see how this is possible.
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Filed under: Frameworks, Java
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For as long as Java has been around, java.util.Date and java.util.Calendar have been nuisances. This will hopefully very soon be a thing of the past with the addition of JSR-310, the Date and Time API, to the Java API. At the basis of JSR-310 lies the Joda time library, which has been around for quite some time as a replacement for the standard Date and Calendar classes. However that this API is not without its own peculiarities need not come as a surprise, given the complexity of the human interpretation of time all over the world.
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Filed under: Java
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