Gets the resolver fields to use during parsing.
!(p)
This returns the resolver fields, used during the second phase of parsing
when fields are resolved into dates and times.
By default, a formatter has no resolver fields, and thus returns null.
See {@link #withResolverFields(Set)} for more details.
@return the immutable set of resolver fields of this formatter, null if no fields
Gets the resolver fields to use during parsing. !(p) This returns the resolver fields, used during the second phase of parsing when fields are resolved into dates and times. By default, a formatter has no resolver fields, and thus returns null. See {@link #withResolverFields(Set)} for more details.
@return the immutable set of resolver fields of this formatter, null if no fields