Is there any open source tool will allow me to easily add JavaDoc comments to my source code?

Govind Seshadri

DocWiz allows you to add JavaDoc comments to your source code easily. With DocWiz, there's no need to tediously hand-format JavaDoc comments, adding tags and comment structures for each method. You can download DocWiz from http://www.mindspring.com/~chroma/docwiz/index.html