public static List<String> getPropertyNames() {
		Collection<String> backedCollection =
			CollectionUtils.asCollection(properties.keySet(), String.class);
		return new LinkedList<>(backedCollection);
	}
Get an array of known property names.
@return if there are no properties, return a zero-length array
Ghidra/Framework/Generic/src/main/java/ghidra/framework/preferences/Preferences.java