public static void main()

in convert/src/convert/CategorizeLicenses.java [43:105]
56 lines of code
8 McCabe index (conditional complexity)

    public static void main(String[] args) throws IOException {
        if (args.length != 2) {
            System.err.println("Use: CategorizeLicenses <source-directory> <target-directory>");
            return ;
        }
        Path root = Paths.get(args[0]);
        int[] recognizedCount = new int[1];
        Map<String, List<String>> licenses = new HashMap<>();
        Map<String, List<String>> paragraphs = new HashMap<>();
        Set<String> noCDDL = new HashSet<>();
        Set<String> cddlNotRecognized = new HashSet<>();
        Files.find(root, Integer.MAX_VALUE, (p, attr) -> attr.isRegularFile())
             .forEach(p -> {
                try {
                    String path = root.relativize(p).toString();
                    String code = new String(Files.readAllBytes(p));

                    if (code.contains("CDDL")) {
                        Description lic = snipUnifiedLicenseOrNull(code, p);

                        if (lic != null) {
                            recognizedCount[0]++;
                            licenses.computeIfAbsent(lic.header, l -> new ArrayList<>()).add(path);
                            for (String par : lic.header.split("\n")) {
                                paragraphs.computeIfAbsent(par, l -> new ArrayList<>()).add(path);
                            }
                            return ;
                        }
                    
                        cddlNotRecognized.add(path);
                        return ;
                    }
                    noCDDL.add(path);
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
             });
        
        Path target = Paths.get(args[1]);

        int i = 0;
        for (Map.Entry<String, List<String>> e : licenses.entrySet()) {
            try (Writer w = Files.newBufferedWriter(target.resolve("lic" + i++))) {
                w.write(e.getKey());
                w.write("\n\n");
                for (String file : e.getValue()) {
                    w.write(file);
                    w.write("\n");
                }
            }
        }
        System.err.println("files with recognized license headers: " + recognizedCount[0]);
        System.err.println("licenses count: " + licenses.size());
        System.err.println("paragraphs count: " + paragraphs.size());
        
        System.err.println("cddl, unrecognized file: " + cddlNotRecognized.size());
        System.err.println("no cddl license: " + noCDDL.size());

        dump(licenses, target, "lic");
        dump(paragraphs, target, "par");
        dump(Collections.singletonMap("Files which contain string CDDL, but their comment structure is not (yet) recognized.", cddlNotRecognized), target, "have-cddl-not-recognized-filetype");
        dump(Collections.singletonMap("Files which do not contain string CDDL", noCDDL), target, "do-not-have-cddl");
    }