0000930413-02-001180 DEF 14A 1 20020515 20020408 COMMUNITY BANK SYSTEM INC 0000723188 6021 161213679 DE 1231 DEF 14A 34 001-13695 02604304 5790 WIDEWATERS PKWY DEWITT NY 13214 8007242262 5790 WIDEWATERS PARKWAY DEWITT NY 13214 DEF 14A 1 c24002_def14a.txt DEFINITIVE PROXY STATEMENT