Question: In which year did the cricketer who took a hat-trick of wickets in the 2015 Royal London One-Day Cup Final make his first class debut ?

Context paragraphs:
George Hankins: George Thomas Hankins (born 4 January 1997) is an English cricketer who plays for Gloucestershire County Cricket Club.  A right handed batsmen, who also bowls right-arm off breaks.  He made his first-class debut for Gloucestershire against the Durham MCCU side in March 2016.  He made his List A debut for Gloucestershire in the 2017 Royal London One-Day Cup on 10 May 2017.  He made his Twenty20 debut for Gloucestershire in the 2017 NatWest t20 Blast on 16 July 2017.

Warwickshire County Cricket Club in 2014: The 2014 season was the 133rd year in the history of Warwickshire County Cricket Club and their 120th as a first-class county.  In 2014, Warwickshire competed in the first division of the County Championship, Group B of the Royal London One-Day Cup and the North Division of the NatWest t20 Blast.  In the NatWest t20 Blast, the club competed under the name "Birmingham Bears" for the first time.  Twenty years after completing a treble, Warwickshire won their first ever t20 title, beating Lancashire in the final on home soil.  They also reached the final in the Royal London One-Day Cup, where they lost to Durham at Lord's.  Warwickshire also finished second in the County Championship, behind Yorkshire.

2014 English cricket season: The 2014 English cricket season began on 1 April with a round of university matches, continued until the conclusion of a round of County Championship matches on 23 September.  Three major domestic competitions were contested: the 2014 County Championship, the 2014 Royal London One-Day Cup and the 2014 NatWest t20 Blast.  The Royal London One-Day Cup and the NatWest t20 Blast were newly created competitions as from the 2014 season, replacing the Clydesdale Bank 40 and the Friends Life t20.

2015 English cricket season: The 2015 English cricket season began in April with a round of university matches, and continued until the conclusion of a round of County Championship matches in late September.  Three major domestic competitions were contested: the 2015 County Championship, the 2015 Royal London One-Day Cup and the 2015 NatWest t20 Blast.

George Rhodes (cricketer): George Harry Rhodes (born 26 October 1993) is an English cricketer.  He made his List A debut on 7 June 2016 for Worcestershire against Yorkshire in the Royal London One-Day Cup.  He made his first-class debut on 10 July 2016 for Worcestershire against Northamptonshire in the 2016 County Championship.  He is the son of former England cricketer, Steve Rhodes, and grandson of Billy Rhodes, who played for Nottinghamshire, both of whom were wicket-keepers.

Jade Dernbach: Jade Winston Dernbach (born 3 March 1986) is an English cricketer who plays for Surrey County Cricket Club and England.  He made his first-class debut in 2003 and won the NBC Denis Compton Award in 2004 and 2009.

James Weighell: William James Weighell (born 28 January 1994) is an English cricketer who plays for Durham and made his first-class debut in 2015.  Primarily a left-handed batsman, he also bowls right-arm medium.  He made his List A debut for Durham in the 2017 Royal London One-Day Cup on 27 April 2017.  He made his Twenty20 debut for Durham in the 2017 NatWest t20 Blast on 7 July 2017.

2015 Royal London One-Day Cup: The 2015 Royal London One-Day Cup tournament was the scheduled limited overs cricket competition for 2015 season of England and Wales first-class counties.  It was won by Gloucestershire County Cricket Club, who defeated Surrey by the narrow margin of six runs, despite a hat-trick from Jade Dernbach, in what was described as 'a thrilling finish'.  The title was Gloucestershire's first trophy since the 2004 Cheltenham & Gloucester Trophy, when they defeated a Worcestershire side that included 2015 Surrey captain Gareth Batty.

Glamorgan County Cricket Club in 2014: The 2014 season marked Glamorgan County Cricket Club's 127th year of existence and its 93rd as a first-class cricket county.  In 2014, Glamorgan played in the Second Division of the County Championship, Group B of the 50-over Royal London One-Day Cup and the South Group of the NatWest t20 Blast.  It was the first season in charge for head coach Toby Radford.  The on-field captains were Mark Wallace for the County Championship and Royal London One-Day Cup, and Jim Allenby for the NatWest t20 Blast.  Unlike other counties, Glamorgan competed in limited-overs cricket without a nickname for the second year in a row.

Richard Gleeson: Richard James Gleeson (born 2 December 1987) is an English cricketer.  He made his first-class debut for Northamptonshire against the Australians on 15 August 2015 and his List A debut for Northamptonshire against Lancashire on 8 June 2016 in the Royal London One-Day Cup.  He also played ten Twenty20 matches in the 2016 season, taking 14 wickets at an average of 16, with an economy rate of 5.97 runs per over, the best in the competition among those who bowled ten overs or more.  Unfortunately, he missed the finals day due to a side strain.

Supporting paragraphs: 2015 Royal London One-Day Cup Jade Dernbach
Answer: 2003