Serial communication with an Arduino Uno on Linux with Java
I have an Arduino Uno that I want to use to drive a LED banner sign which posts messages from IRC. Accessing the serial port from Java on a Dockstar with Debian proved to be somewhat of a challenge....
View ArticleMats Stijlaart on plugin frameworks
This is the next post in our series about the interns that currently work at Avisi. This time we introduce Mats Stijlaart. The Atlassian plugin framework is used on several projects to enable seamless...
View ArticleMultiline Regular Expression
This week I had to help a colleague out with a regular expression (or regex). We came up with an interesting regex but ran into an unexpected Java problem, so I thought I’d share the results with you....
View ArticleJBoss AS7.1 and RESTEasy: upgrading Jackson
We’re currently in the process of upgrading our application platform from JBoss 5.1.0 to JBoss AS7.1.1. Since it’s quite a big change (especially the transition from AS6 to AS7) things tend to break...
View ArticleJDBC datasource password encryption in JBoss AS7
At Avisi we maintain an application platform where the platform (VM’s, databases, LDAP, etc.) is maintained by a third party. Modernizing our deployment processes, we obtained ownership of the...
View ArticleJava: Stripping namespaces from XML using DOM
Although we usually like to enforce strict rules on our data, sometimes we just like to loosen it up a little. Don’t get me wrong, namespaces definitely have a place and we use them to enforce...
View ArticleJava Mission Control
If you haven’t already done so, I encourage you to update to JDK 1.7 u40 (or higher, u45 has just been released) as soon as possible. Update 40 shipped with new monitoring and diagnostics tool called...
View ArticleTrends at Devoxx 2013
Every year there is a large (mostly Java related) software engineering conference in Antwerp Belgium, named Devoxx. Together with several Avisi engineers we visited Devoxx to learn about new...
View ArticleTrusted-Library fail
Since Java 7u21 Oracle introduced a new manifest attribute called Trusted-Library. One would use this attribute to handle mixed code [1] in Java applets or Java Webstart applications. Now before you...
View ArticleChoices we haven’t regretted
A year ago we started on the new MoreApp platform. Its predecessor was more of a proof of concept that was sold to some customers. It was time to build a stable, better performing and more...
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