private static Boolean getDefaultValue(String attribute, Map<String, ?> userProvidedDefaults) {
    Object userProvidedValue = userProvidedDefaults.get(attribute);
    if (userProvidedValue != null) {
      return checkType("dos", attribute, userProvidedValue, Boolean.class);
    }

    return false;
  }
Attribute provider that provides the {@link DosFileAttributeView} ("dos") and allows the reading
of {@link DosFileAttributes}.

@author Colin Decker
jimfs/src/main/java/com/google/common/jimfs/DosAttributeProvider.java