Take a look at Apache Commons Transaction. It has the capability to manage files transactionally.
An archived article detailed its use with the file system.
update
Be aware that the status on the front page says:
We have decided to move the project to dormant as we are convinced that the main advertised feature transactional file access can not be implemented reliably. We are convinced that no such implementation can be possible on top of an ordinary file system. Although there are other useful parts (as multi level locking including deadlock detection) the transactional file system is the main reason people use this library for. As it simply can not be made fully transactional, it does not work as advertised.