@Override
	public SortedMap<K, V> headMap(K toKey) {
		return headMap(toKey, false);
	}
Construct a generated (wrapper) entry, for the entry-retrieval methods.

<p>
This handles the null case in one place.

@param ent the entry to wrap, possibly null
@return the generated entry, or null
Ghidra/Framework/Generic/src/main/java/ghidra/util/datastruct/AbstractWeakValueNavigableMap.java