@Override
		public int findKeyRange(List<KeyRange> keyRangeList, Address addr) {
			if (addr == null) {
				return -1;
			}
			return Collections.binarySearch(keyRangeList, addr, addressInsertionKeyRangeComparator);
		}
Comparator used to identify if an addr occurs before or after the 
start of a key range.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/map/AddressMapDBAdapterNoTable.java