archaius-core/src/main/java/com/netflix/config/ConcurrentMapConfiguration.java
public void loadProperties(Properties props) {
        for (Map.Entry<Object, Object> entry: props.entrySet()) {
            String key = (String) entry.getKey();
            Object value = entry.getValue();
            if (key != null && value != null) {
                setProperty(key, value);
            }
        }
    }
public void loadProperties(Properties props) {
        for (Map.Entry<Object, Object> entry: props.entrySet()) {
            String key = (String) entry.getKey();
            Object value = entry.getValue();
            if (key != null && value != null) {
                setProperty(key, value);
            }
        }
    }
Load properties into the configuration. This method iterates through
the entries of the properties and call {@link #setProperty(String, Object)} for
non-null key/value.