java process going rogue with 5000+ threads #4328

I started seeing slowness on my computer and it is due to a java process taking up 99.99% of cpu.

I can kill it but it soon again starts.

Today I managed to run jstack and saw it has over 5739 threads running

below is https://jstack.review/ output

and attached the full stacktrace here:

jstack2.txt

maybe its related to #4307 as its in a repo with lots of small projects (~60) in a multimodule project.