I think (?) it is very OS-dependent, e.g. not a Java portable issue at all, e.g. how you would determine what application the current user's environment (or the default they've inherited from their OS shell) wants you to invoke, for editing a given file/document, and then how to invoke that application.


You might be better off just invoking a pure Java editor, perhaps? or else provide a property configuration, where the user would let you know what editor application they want you to use.