code: private void setFileHandle() {
          byte[] fileHandle = null;
          if (_isRootFile) {
              fileHandle = getNfs().getRootFileHandle();
          } else {
              try {
                  if (getParentFile().getFileHandle() != null) {
                      fileHandle = getNfs().wrapped_getLookup(makeLookupRequest()).getFileHandle();
                  }
              } catch (IOException e) {
                  // do nothing, this will be a common exception
              }
          }
          setFileHandle(fileHandle);
      }
docs: Set the file handle from the _path value