public String getUri() {
    if ("".equals(local_uri))
      local_uri = null;
    return local_uri;
  }
VFS URIs validator

@author Stan Love <stanlove at users.sourceforge.net>
@version 0.0.4
olv-vfs/src/main/java/net/sf/vfsjfilechooser/utils/VFSURIValidator.java