Leinster will have home advantage against Stade FranÃ§ais in the Amlin Challenge Cup Final after beating Biarritz 44-16 in Dublin on Saturday.
Tries were scored by Jamie Heaslip (2), Jonathan Sexton, Isa Nacewa and Brian O'Driscoll, with the number eight sending a late message to British and Irish Lions boss Warren Gatland ahead of Tuesday's squad announcement in London.
Heaslip's double was in the first 40 while Sexton added fourteen points via a try, three conversions and a penalty goal which sent the Heineken Cup champions in at the break 24-9 to the good.
Biarritz's only points of that half arrived through the boot of scrum-half Dimitri Yachvili and things did not improve in the second stanza as Leinster added further tries from Nacewa and O'Driscoll that rubber stamped their passage to the final.
BO did manage a consolation score in the 67th minute when hooker Arnaud Heguy went over but the game was long gone for the Amlin Challenge Cup holders, who bow out of the competition.
Tries: Heaslip 2, Sexton, Nacewa, O'Driscoll
Con: Sexton 3, Madigan 2
Pen: Sexton 2, Madigan
Pen: Yachvili 3
Yellow: Ngwenya (44 mins)
Leinster: 15 Rob Kearney, 14 Fergus McFadden, 13 Brian O'Driscoll, 12 Ian Madigan, 11 Isa Nacewa, 10 Johnny Sexton, 9 Isaac Boss, 8 Jamie Heaslip, 7 Shane Jennings, 6 Kevin McLaughlin, 5 Devin Toner, 4 Leo Cullen, 3 Mike Ross, 2 Richardt Strauss, 1 Cian Healy.
Replacements: 16 Sean Cronin, 17 Jack McGrath, 18 Jamie Hagan, 19 Quinn Roux, 20 Rhys Ruddock, 21 John Cooney, 22 Andrew Goodman, 23 Andrew Conway.
Biarritz: 15 Marcelo Bosch, 14 Taku Ngwenya, 13 BenoÃ®t Baby, 12 Damien Traille, 11 Aled Brew, 10 Jean-Pascal Barraque, 9 Dimitri Yachvili, 8 Imanol Harinordoquy, 7 Raphael Lakafia, 6 Thibault Dubarry, 5 Pelu Taele, 4 Erik Lund, 3 Ben Broster, 2 Arnaud Heguy, 1 Thomas Synaeghel.
Replacements: 16 Benoit August, 17 EugÃ¨ne Van Staden, 18 Francisco Gomez Kodela, 19 Wenceslas Lauret, 20 Mathias Marie, 21 Yann Lesgourgues, 22 SeremaÃ¯a Burotu, 23 Teddy Thomas.
Referee: Wayne Barnes (Eng)
Assistant referees: Greg Garner (Eng); Paul Dix (Eng)
TMO: Geoff Warren (Eng)
Citing Commissioner: Ray Wilton (Wal)