No, Thanos opened a portal into the DC Universe and tested it with Terrax. However, Henshaw finds the portal with Hal Jordan on his tail. Both use the opposite hero to give them their powers to use.
Anyway, during Final Night Parallax one shot, Hal says he plucked Henshaw out the blackhole because he wanted to be the one to deliever justice. Then references the crossover above before Trial of Superman hit. You'll see in my next post :)