Our Jenkins usually is running 3-4 builds in parallel (each build ~6 threads). Already two days builds hang in random time in random places. We checked the memory - it uses ~23%, so it's not the problem. We restarted it a several times, but it didn't help.

Thread Dump attached. Let me know if more info is required.

All automation is blocked on this issue. It's critical for the company. Please help us.

Thanks