Dublin defeated Wexford by 2-12 to 1-12 to win their sixth Leinster SFC title in seven years.
A disappointing final played in front of 40,000 spectators at Croke Park was decided by a catastrophic moment in the second half, when an own goal handed the initiative back to the Dubs, just after Wexford had hit the front with a Redmond Barry goal.
The Brogan brothers, Alan and Bernard, knocked over a couple of points each as Dublin opened out a four points lead. Paul Flynn and Bryan Cullen were also on target, with goalkeeper Stephen Cluxton getting in on the scoring act with a converted '45.
Pat Gilroy's side led by 0-7 to 0-3 10 minutes before the break, but Wexford finally got the measure of the opposing defence, and Ben Brosnan and Ciaran Lyng hit the scores which narrowed the gap to a point, Dublin ahead by 0-7 t o0-6 at the break.
Subsitute PJ Banville sent Barry through for a Wexford goal, but Dublin responded with goals from James McCarthy and Graeme Molloy (o.g.).
Brosnan finished with a nine points tally, but it wasn't enough to prevent the Dubs from securing another Delaney Cup triumph and a place in the All-Ireland quarter-finals.
Meanwhile, All-Ireland hurling champions Tipperary handed out a heavy 7-19 to 0-19 beating to provincial title-holders Waterford in the Munster SHC final at Semple Stadium.
Tipp were out of sight by half-time, having stormed to a 17 points lead. Corbett blasted in the opening goal in the fourth minute, and although the Premier men continued to rip the Decies defence to shreds, the second goal did not arrive until the half hour mark.
But they hit four in the space of three minutes, with Eoin Kelly and Seamus Callanan also hitting the net, and Corbett completing his hat-trick for a 5-10 to 0-8 interval lead.
Kelly added his second goal, and Corbett hit his fourth in the second half, and despite Pauric Mahony's 12 points tally, his Waterford side was left reeling by a 21 points defeat.