Jeroen Reijn


on Tech, Open Source and software development

Apache Cocoon and Javascript minification

A couple of days ago somebody on the Apache Cocoon user list send a message to the mailing-list about on the fly minification of for instance Javascript files. This topic has been quite popular over the past years, since web application have become richer and Javascript files have become larger.

Continue reading »


Japanese and Java resource bundles

At Hippo we have a project, which is build with Java Server Faces, for which I occasionally do some maintenance. A while ago I had an issue in our JIRA bug tracker that reported an error for the Japanese version of the website. The error came from a component that reads information from a resource bundle properties file, which is stored on the local filesystem. In this case from the Japanese version of the resource bundle (ApplicationResource_jp.properties), which is used by the web application to display some Japanese labels.

Continue reading »


JCR: Sorting on child node properties

A JCR repository, like Apache Jackrabbit (basis for Hippo CMS 7’s content repository), mainly consists of nodes and properties. As described in the JCR specification, a Java Content Repository should support 2 different query syntaxes: XPath and SQL. Once you get the hang of the syntax, performing a search on a JCR repository is quite easy, but today I came into a situation where I was not able perform the query I wanted. In this post I’ll try to describe what my problem was and how the same result can still be achieved.

Continue reading »


Mozilla lightning in Ubuntu Jaunty

I just did a fresh install of Ubuntu Jaunty Jackalope(9.04). After reinstalling Thunderbird (my favorite mail client), I was unable to see my Google calendars with Thunderbirds Lightning extension.

Continue reading »


Eclipse plugins

I’ve been using Eclipse as my main IDE the past couple of years. Eclipse by itself is great for Java development, but you can do so much more with it then just that. One of the biggest advantages I think Eclipse has, is that there are so many plugins available for it.

Continue reading »