Paragraphwrap is a project mainly written in Java, it's free.
Eclipse command for wrapping long lines
== Paragraphwrap ==
Paragraphwrap is an Eclispe plugin that implements a command for wrapping long lines.
The code is hosted at Github while the issue list is currently hosted as Eclipselabs (http://code.google.com/a/eclipselabs.org/p/paragraphwrap/)