#vulnerable code 
                                public List<WordAnalysis> analyzeWithoutCache(String word) {
        String s = normalize(word); // TODO: this may cause problem for some foreign words.
        if (s.length() == 0) {
            return Collections.emptyList();
        }
        List<WordAnalysis> res = wordAnalyzer.analyze(s);
        if (res.size() == 0) {
            res.addAll(analyzeWordsWithSingleQuote(s));
        }
        if (res.size() == 0 && useUnidentifiedTokenAnalyzer) {
            invalidateCache(s);
            res.addAll(unidentifiedTokenAnalyzer.parse(s));
        }
        if (res.size() == 0) {
            res.add(new WordAnalysis(
                    DictionaryItem.UNKNOWN,
                    s,
                    Lists.newArrayList(WordAnalysis.InflectionalGroup.UNKNOWN)));
        }
        return res;
    } 
                            #location 12 
                            #vulnerability type THREAD_SAFETY_VIOLATION
#fixed code
                                public List<WordAnalysis> analyzeWithoutCache(String word) {
        String s = normalize(word); // TODO: this may cause problem for some foreign words.
        if (s.length() == 0) {
            return Collections.emptyList();
        }
        List<WordAnalysis> res = wordAnalyzer.analyze(s);
        if (res.size() == 0) {
            res.addAll(analyzeWordsWithSingleQuote(s));
        }
        if (res.size() == 0 && useUnidentifiedTokenAnalyzer) {
            invalidateCache(s);
            res.addAll(unidentifiedTokenAnalyzer.analyze(s));
        }
        if (res.size() == 0) {
            res.add(new WordAnalysis(
                    DictionaryItem.UNKNOWN,
                    s,
                    Lists.newArrayList(WordAnalysis.InflectionalGroup.UNKNOWN)));
        }
        return res;
    }