Illegal Argument Exception

Java 8 introduces the concept of default methods to interfaces and this post looks at the cost of adding state to them. This information p...

Update: Java 8 has been released and I've implemented a library with a more elegant approach to exception handling than the one descri...

Pre-release builds of Java 8 with lambda support are available for download. This post looks at lambda-8-b50-linux-x64-26_jul_2012.tar.gz ....

The Contexts and Dependency Injection (CDI) API introduced in Java EE 6 complements the JSF framework. There are good reasons to favour it ...

Some users can run afoul of Portal's user-agent rules. Symptoms include the inability to log in and form submissions just causing page r...

define(["dojo/text!./path/some.txt"], function(textData) { Dojo's AMD loader has some useful contextual loading features...

A short post about setting up a trial WebSphere Portal Express server on the (unsupported) CentOS operating system.

Like many programmers, I like to run virtual machines to isolate development and test environments from everything else I do on my laptop. M...

This post demonstrates a way to use the Dojo 1.7 AMD loader to provide mock /stub/fake/dummy artefacts in place of the defined d...

Along with a few other JavaScript libraries , Dojo is making the transition to the Asynchronous Module Definitio...

A previous post discussed how to inject the FacesContext into managed beans using a broker . This post demonstrates how to build on that a...

Referencing the FacesContext directly in Java classes makes managed beans more difficult to unit test. This post discusses how to mock the ...

One criticism developers have of JavaServer Faces is that it is not possible to add arbitrary attributes to the resultant markup. Problems a...

I've been doing a bit of work recently with JAX-RPC on WebSphere Application Server 6.1. This is hardly cutting edge software (WAS 8 is ...

JAX-WS is built into Java 6. This makes it a low-dependency choice for writing SOAP-based web service code. This post covers the basics of J...

After upgrading the iPads to a new version, we started seeing a logon issue with servers protected by TAM WebSEAL . After successfully authe...

Let's take a JavaScript string: "€100" . This is going to be sent from a browser input box and stored in a web server's da...

When you see a JSP document, you might wonder why it specifies the UTF-8 encoding three or four times. This is a post about what those decla...

Comments are moderated and will not appear until I approve them. I don't live on the blog, so it may take me some time to see and re...

The method System.console() can return null if there is no console device present. This comes as a surprise to people when they run their ...