Sending EventBus events spawn new threads that not released

Overview:
After upgrade to rmb v32.0.1 we had to no longer use VertexCompletableFuture library and replace supplyBlockingAsync to CompletableFuture.supplyAsync method but it lead spawning new thread and as result app crashing
Steps to Reproduce:

1. Send event to ReceiveOrderStatusChangeHandler and see that it spawn new threads

Expected Results:
Send event to ReceiveOrderStatusChangeHandler and another places that use CompletableFuture.supplyAsync not lead to spawn new threads
Actual Results:
Send event to ReceiveOrderStatusChangeHandler and another places that use CompletableFuture.supplyAsync lead to spawn new threads