public void setUpdateDate(java.util.Date updateDate) {
        this.updateDate = updateDate;
    }
<p>
The date and time the state machine was updated.
</p>

@param updateDate
       The date and time the state machine was updated.
aws-java-sdk-stepfunctions/src/main/java/com/amazonaws/services/stepfunctions/model/UpdateStateMachineResult.java