Adam has been with the club since the age of 11, another player off the Academy conveyor-belt.
A full back with a quick turn of pace, the Welsh Under-21 international is able to play on the right or the left side of defence
After making his debut in November 2011, the young defender would go on to make eight impressive first team appearances that season.
However the start of 2012-13 saw first team opportunities limited but a change of manager meant a change of fortune as he forced his way back into the senior picture.
Unfortunately injuries disrupted the second half of the campaign, a serious hamstring strain ending his campaign prematurely.
Henley returned to action in December 2013, but further injuries meant he was limited to just 16 appearances.