question: public CircuitBreaker withSuccessThreshold ( int successThreshold ) { Assert . isTrue ( successThreshold >= 1 , "successThreshold must be greater than or equal to 1" ) ; return withSuccessThreshold ( successThreshold , successThreshold ) ; }
target:  Sets the number of successive successful executions that must occur when in a half-open state in order to close the circuit, else the circuit is re-opened when a failure occurs.