25517cb21bb7274564ab23ccbf4009a0549d4668,opennms-model/src/main/java/org/opennms/netmgt/model/Acknowledgment.java,Acknowledgment,Acknowledgment,#OnmsAlarm#,91

Before Change


    }
    
    public Acknowledgment(final OnmsAlarm a) {
        this(a.getAlarmAckTime(), a.getAlarmAckUser());
        m_ackType = AckType.Alarm;
        m_refId = a.getId();
    }
    

After Change


    
    public Acknowledgment(final OnmsAlarm a) {
        
        if (a == null) {
            throw new IllegalArgumentException("OnmsAlarm is null.");
        }
        
        m_ackTime = a.getAlarmAckTime();
        m_ackUser = a.getAlarmAckUser();
        m_ackType = AckType.Alarm;
        m_refId = a.getId();
    }