DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.
There appeared to have been a problem with the files that were uploaded for the 20080106-0744 stable version that prevented DrJava from being run when downloaded from some servers.
These problems had been fixed within two days of the release. The version number has not been changed since the files were simply uploaded again.
We apologize for the inconvenience.