private static Map<FSRL, GFile> getListing(GFile f) {
		try {
			List<GFile> listing = f.getListing();
			return listing.stream().collect(Collectors.toMap(f1 -> f1.getFSRL(), f1 -> f1));
		}
		catch (IOException e) {
			return Map.of();
		}
	}
Returns the extension of this node's name, or "" if none

@return extension of this node's name, or "" if none
Ghidra/Features/Base/src/main/java/ghidra/plugins/fsbrowser/FSBNode.java