Consider the question. In basketball, a free throw is an unopposed attempt to score points from behind the free throw line. The National Basketball Association's (NBA) free throw percentage leader is the player with the highest free throw percentage in a given season. José Calderón holds the record for best free throw percentage in a season, which he accomplished with the Toronto Raptors in the 2008 -- 09 NBA season. To qualify as a free throw percentage leader, the player must have at least 125 free throws made. Aside from the strike shortened 1998 -- 99 and 2011 -- 12 seasons, this has been the entry criteria since the 1974 -- 75 season.

Who has highest free throw percentage in nba history?
 If the answer is 'José Calderón'; explain the reasoning:
The relevant information to answer the above question is: José Calderón holds the record for best free throw percentage in a season, which he accomplished with the Toronto Raptors in the 2008 -- 09 NBA season.