code: private String prependChroot(String clientPath) {
          if (cnxn.chrootPath != null) {
              // handle clientPath = "/"
              if (clientPath.length() == 1) {
                  return cnxn.chrootPath;
              }
              return cnxn.chrootPath + clientPath;
          } else {
              return clientPath;
          }
      }
docs: Prepend the chroot to the client path (if present). The expectation of
  this function is that the client path has been validated before this
  function is called
  
  @param clientPath
  path to the node
  @return server view of the path (chroot prepended to client path)