boolean function ( ) { return deprecatedKeys != EMPTY ; }
checks whether this option has deprecated keys . concode_field_sep String[] deprecatedKeys concode_elem_sep T defaultValue concode_elem_sep String[] EMPTY concode_elem_sep String key concode_field_sep boolean hasDefaultValue concode_elem_sep Iterable<String> deprecatedKeys concode_elem_sep T defaultValue concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String toString concode_elem_sep ConfigOption<T> withDeprecatedKeys concode_elem_sep String key