/src/main/java/org/htmlunit/ProxyAutoConfig.java
if ( dayyear1 != -year1) {
if ( day1 != -1 ) {
month2 = dateRange_getMonth(value2); year2 = dateRange_getYear(value2); cal2 = dateRange_createCalendar(timezone, day2, month2, year2); break; case 4: day1 = getSmallInt(value1); <extra_id_0> month1 = dateRange_getMonth(value2); day2 = getSmallInt(value3); month2 = dateRange_getMonth(value4); cal1 = dateRange_createCalendar(timezone, day1, month1, -1); cal2 = dateRange_createCalendar(timezone, day2, month2, -1); }