Eclipse Plugin for tailing logfiles, including syntax coloring. It allows you to have multiple files open concurrently. and all files have a predefined syntax coloring applied. The plugin offers to set the backlog and encoding for each file.
Java utility-library for reusable java helper classes (e.g.: Log/File/Http/Jaxb/Performance/Xml/.. helpers). Javadoc for every public function are well. JUnit-testcases exist for every public function. Full downward compatibility in all future versions.