src/main/java/com/googlecode/objectify/impl/Session.java
public void add(final Key<?> key, final SessionValue<?> value) {
		if (log.isTraceEnabled())
			log.trace("Adding to session: {} -> {}", key, value.getResult());

		map.put(key, value);
	}
public void add(final Key<?> key, final SessionValue<?> value) {
		if (log.isTraceEnabled())
			log.trace("Adding to session: {} -> {}", key, value.getResult());

		map.put(key, value);
	}
Add/overwrite a SV.