Java thread error

I think it’s necessary to report to Sponge
this is lastlog

I can’t find the solution, and I don’t know its trigger condition.
My MODs list:

Seems to be due (at least in part) to extra utilities 2.

I’ve found out the problem. It’s extrautils2-1.12-1.7.6.jar’s problem.
Quantum Quarry and Quantum Quarry Actuator will cause conflict
Just like the lastlog report above

see https://github.com/SpongePowered/SpongeForge/issues/1961#issuecomment-364134079
for a fix