Any free VFS java library?

Question

I am looking for a free java library that will allow me to organize part of the file system as one physical file. I excluded Apache VFS because I need a unique format that will be difficult to parse for someone else, and not for lightning, resins, etc. Is there an affordable solution? Thanks for any suggestions.

Edit: random access to content is also a priority

Answer 1

Consider the FS2 project . It was built as a simple answer to JSR 170. The API is lightweight and it is easy to implement a custom save mechanism.

Answer 2

, JBOSS VFS3