@Override
	public NavigableMap<K, V> subMap(K fromKey, boolean fromInclusive, K toKey,
			boolean toInclusive) {
		processQueue();
		return new NavigableView<>(this,
			getRefMap().subMap(fromKey, fromInclusive, toKey, toInclusive));
	}
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