// This avoids unnecessary queryPath calls
                        log.trace("Share root existence verified through tree connection");
                    } else {
                        // Use more efficient query for file existence
                        // Prefer SMB2 CreateRequest with minimal access rights over query path
                        if (th.isSMB2()) {
                            try {

    checkNotNull(map);
    try {
      return map.remove(key);
    } catch (ClassCastException | NullPointerException e) {
      return null;
    }
  }

  /** An admittedly inefficient implementation of {@link Map#containsKey}. */
  static boolean containsKeyImpl(Map<?, ?> map, @Nullable Object key) {
    return Iterators.contains(keyIterator(map.entrySet().iterator()), key);
  }

    checkNotNull(map);
    try {
      return map.remove(key);
    } catch (ClassCastException | NullPointerException e) {
      return null;
    }
  }

  /** An admittedly inefficient implementation of {@link Map#containsKey}. */
  static boolean containsKeyImpl(Map<?, ?> map, @Nullable Object key) {
    return Iterators.contains(keyIterator(map.entrySet().iterator()), key);
  }