Out Of memory after 6000 tests

Hi,

We are running lots of junit 5 tests ( +5000) but we are always arriving in a out of memory for the maven surefire plugin as it seems it is keeping a lot of info into the heap space, we raised internally already to -Xmx8GB but seems still not enough, do you see any improvements we still can make?
we already remove big parts of our logging, but seems that it is still filling up memory