@Override
    public int hashCode() {
        final int PRIME = 31;
        int result = 1;
        result = PRIME * result + ((deviceIdentifier == null) ? 0 : deviceIdentifier.hashCode());
        result = PRIME * result + ((objectIdentifier == null) ? 0 : objectIdentifier.hashCode());
        result = PRIME * result + ((postDelay == null) ? 0 : postDelay.hashCode());
        result = PRIME * result + ((priority == null) ? 0 : priority.hashCode());
        result = PRIME * result + ((propertyArrayIndex == null) ? 0 : propertyArrayIndex.hashCode());
        result = PRIME * result + ((propertyIdentifier == null) ? 0 : propertyIdentifier.hashCode());
        result = PRIME * result + ((propertyValue == null) ? 0 : propertyValue.hashCode());
        result = PRIME * result + ((quitOnFailure == null) ? 0 : quitOnFailure.hashCode());
        result = PRIME * result + ((writeSuccessful == null) ? 0 : writeSuccessful.hashCode());
        return result;
    }