@Override
	public int size() {
		return entrySet().size();
	}
Returns the number of key-value mappings in this map.
<strong>Note:</strong> <em>In contrast with most implementations of the
<code>Map</code> interface, the time required by this operation is
linear in the size of the map.</em>
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/utils/WeakHashMap2.java