Open Recent File feature currently supports only local disk files.
As Netbeans has full fledged support for remote development, support needs to be added for recently opened/closed remote file (rfs:// , sftp:// etc)
This feature would make it very convenient especially for opening last closed file in C++ remote development mode.
Required code changes
Recent files list is stored as system dependent file path. Replacing this with URLs obtained for URLMapper would be all that is needed