Remove any usage of the

me.escoffier.vertx:vertx-completable-future = https://github.com/cescoffier/vertx-completable-future

library because it is no longer maintained and doesn't work with Vert.x 4.

The library maintainer Clement Escoffier, a Vert.x Core developer, says at https://github.com/cescoffier/vertx-completable-future/issues/45 :

Unfortunately, I don't have the time to maintain this project.
I don't believe it would be part of Vert.x, and in terms of API, I'm not recommending CompletionStage anymore after having seen quite some code horrors.

vertx-completable-future requires Vert.x 3. It doesn't work with Vert.x 4 because it uses Future#setHandler that exists in Vert.x 3 but not in Vert.x 4 (removal commit).

https://vertx.io/blog/from-vert-x-3-to-vert-x-4/ :

Vert.x 3 will con­tinue to get bug fix re­leases of­fi­cially until Jan­u­ary 2023.

FOLIO's Morning Glory support period exceeds January 2023.

Therefore all modules must migrate from Vert.x 3 to Vert.x 4 for Morning Glory.