nl: get this period as an immutable period object . the period will use periodtype.standard . concode_field_sep long START_1972 concode_elem_sep int iPeriod concode_elem_sep long serialVersionUID concode_field_sep DurationFieldType getFieldType concode_elem_sep DurationFieldType getFieldType concode_elem_sep boolean isSupported concode_elem_sep int compareTo concode_elem_sep int getValue concode_elem_sep int getValue concode_elem_sep int size concode_elem_sep int hashCode concode_elem_sep void setValue concode_elem_sep int get concode_elem_sep boolean equals concode_elem_sep PeriodType getPeriodType concode_elem_sep MutablePeriod toMutablePeriod concode_elem_sep int between concode_elem_sep int between concode_elem_sep int standardPeriodIn
code: Period function ( ) { return Period . ZERO . withFields ( this ) ; }