some versions of Netbeans had some serious problems with NFS, in the end I installed eclipse.
Eclipse had also some problems with NFS, but you were able to set your working-directory somewhere on your harddisk and the problem resolved.
I believe both had problems with the locking they did. In one of both (I don't know which) you were able to skip the locking by replacing a jar with the equivalent of an older version.
These problems might have been resolved with newer versions by now. It's been half a year since I had those problems and I haven't switched IDE's since then.
But if you're not using a NFS, this will be useless information for you
Anyways, I really like eclipse now - don't know if I'd switch back to Netbeans.
EDIT: And BTW I read in an ix (a german computer magazine), that eclipse is able to compete with the current commercial IDE's. All IDE's ofcourse have their advantages and disadvantages.