#vulnerable code 
                                @Test
    void testKeyCount() {
        ((ConsoleAppender) Logger.getRootLogger().getAppender("stdout")).setThreshold(Level.DEBUG);
        File f = new File("E:\\Downloads\\_Isaaku\\dev\\ripme-1.7.86-jar-with-dependencies.jar");
        File[] files = f.listFiles(new FilenameFilter() {

            @Override
            public boolean accept(File dir, String name) {
                logger.info("name: " + name);
                return name.startsWith("LabelsBundle_");
            }

        });

        for (String s : getResourcesNames("\\**")) {
            logger.info(s);
        }

    } 
                            #location 15 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Test
    void testKeyCount() {
        ResourceBundle defaultBundle = Utils.getResourceBundle(null);
        HashMap<String, ArrayList<String>> dictionary = new HashMap<>();
        for (String lang : Utils.getSupportedLanguages()) {
            ResourceBundle.clearCache();
            if (lang.equals(DEFAULT_LANG))
                continue;
            ResourceBundle selectedLang = Utils.getResourceBundle(lang);
            for (final Enumeration<String> keys = defaultBundle.getKeys(); keys.hasMoreElements();) {
                String element = keys.nextElement();
                if (selectedLang.containsKey(element)
                        && !selectedLang.getString(element).equals(defaultBundle.getString(element))) {
                    if (dictionary.get(lang) == null)
                        dictionary.put(lang, new ArrayList<>());
                    dictionary.get(lang).add(element);
                }
            }
        }

        dictionary.keySet().forEach(d -> {
            logger.warn(String.format("Keys missing in %s", d));
            dictionary.get(d).forEach(v -> logger.warn(v));
            logger.warn("\n");
        });
    }