An executable Jar file contains both a Swing-based editor with syntax-highlighting, online help, example generator etc. for the "httest" tool (https://sourceforge.net/projects/htt/), as well as a Java API wrapper for writing JUnit tests with "httest".
BeanClipse is a NetBeans plugin for Eclipse: NetBeans runs embedded within the Eclipse platform as a plugin offering the best of both worlds to Java developers.
May be just a joke ;-) ....
Check also it's twin at : http://sf.net/projects/netclipse