I’m currently participating on a software development project using the Google Web Toolkit (GWT). While developing the GUI for a certain part of this project, I came across the need of a group box panel.

For those who don’t know what a group box is; here is an example:

Fortunately this type of panel is directly supported by HTML throught the <fieldset> tag. Unfortunately it isn’t supported by GWT (yet). However, it’s very simple to implement this using the SimplePanel class provided by GWT.

This code is provided as public domain.