code: public static PlainDate of(
          int year,
          int month,
          int dayOfMonth
      ) {
  
          return PlainDate.create(year, month, dayOfMonth, null, true);
  
      }
docs: /*[deutsch]
  <p>Erzeugt ein neues ISO-konformes Kalenderdatum. </p>
  
  @param   year        proleptic iso year [(-999,999,999)-999,999,999]
  @param   month       gregorian month in range (1-12)
  @param   dayOfMonth  day of month in range (1-31)
  @return  new or cached calendar date instance
  @throws  IllegalArgumentException if any argument is out of range
  @see     #of(int, Month, int)
  @see     #of(int, int)
  @see     #of(int, int, Weekday)