#fixed code
                                @Override
    public void clear() {
        Map<String, String> savedHash = nest.hgetAll();
        for (Map.Entry<String, String> entry : savedHash.entrySet()) {
            nest.hdel(entry.getKey());
        }
        nest.del();
    }
#vulnerable code 
                                @Override
    public void clear() {
        Map<String, String> savedHash = nest.hgetAll();
        for (Map.Entry<String, String> entry : savedHash.entrySet()) {
            V value = JOhm.get(valueClazz, Integer.parseInt(entry.getValue()));
            value.delete();
            nest.hdel(entry.getKey());
        }
        nest.del();
        refreshStorage(true);
    } 
                            #location 3 
                            #vulnerability type THREAD_SAFETY_VIOLATION