In this title, “termination of service” includes:
(1) retirement at the age required by Article IV, § 3 of the Maryland Constitution;
(2) voluntary retirement;
(3) resignation because of disability;
(4) retirement by order of the Supreme Court of Maryland;
(5) resignation;
(6) nonelection or nonconfirmation when election or confirmation is required;
(7) expiration of term without reappointment; or
(8) abolition of the member’s office.