public Association withLastExecutionDate(java.util.Date lastExecutionDate) {
        setLastExecutionDate(lastExecutionDate);
        return this;
    }
<p>
The date on which the association was last run.
</p>

@param lastExecutionDate
       The date on which the association was last run.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/Association.java