You can write beans using any Java development process with which you are familiar. "Bean Development Kits" are really only to allow you to
test and "wire together" UI-style beans.
A lot of people these days are writing beans for use by (for example)
JSP or WebMacro processing on a server, so there is no nead for a bean-box.
I would strongly recommend sticking with bean-style accessors and mutators for all your classes if you have the choice. You never know what you may want to put into some sort of container that understands JavaBean idioms.