# java – Stack overflow error encountered in AnyLogic

My model executed for the first 800 seconds after which I encounter the following error. Is there a way by which I can increase the stack size in AnyLogic? Is there any other approach I could use to counter the same?

Exception during discrete event execution:
StackOverflowError
java.lang.StackOverflowError
at com.anylogic.engine.Agent.e(Unknown Source)
at com.anylogic.engine.Agent.h(Unknown Source)
at com.anylogic.engine.Agent.ext(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source) at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source) at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source) at com.anylogic.libraries.processmodeling.OutputBlock.forwardReadyEntityNotification(Unknown Source) at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)