 The JBL was composed of two divisions, the JBL (Division 1, formerly "JBL Super League") and the JBL2 (Division 2, formerly "Japan League").In June 2012, the Japan Basketball Association announced the establishment of the National Basketball League (NBL) as the topflight professional league in Japan.The 2012–13 season was the last JBL season as JBL teams joined the NBL.