Collection<Path> extraClassFiles() {
			return classToClassFilesMap.values()
					.stream()
					.flatMap(l -> l.stream())
					.collect(Collectors.toList());
		}
Map classes in {@code directory} with {@link ClassMapper}.
 
@param directory the directory
@throws IOException if there's a problem listing files
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/osgi/GhidraSourceBundle.java