} catch (final CIFSException e) {
            log.debug("Failed to check for workgroup", e);
            return false;
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see java.net.URLConnection#connect()
     */
    @Override
    public void connect() throws IOException {
        try (SmbTreeHandle th = ensureTreeConnected()) {}
    }

    /**

    return values().contains(value);
  }

  // Overriding to mark it Nullable
  @Override
  public abstract @Nullable V get(@Nullable Object key);

  /**
   * {@inheritDoc}
   *
   * <p>See <a
   * href="https://developer.android.com/reference/java/util/Map.html#getOrDefault%28java.lang.Object,%20V%29">{@code
   * Map.getOrDefault}</a>.
   *