Method add

src/main/java/burp/utils/UrlScanCount.java:27–36

(String key)

     * WARNING - Removed try catching itself - possible behaviour change.
     */
    public void add(String key) {
        Map<String, Integer> map;
        if (key == null || key.length() <= 0) {
            throw new IllegalArgumentException("Key \u4e0d\u80fd\u4e3a\u7a7a");
        }
        Map<String, Integer> map2 = map = this.getStringMap();
        synchronized (map2) {
            this.countMap.put(key, this.get(key) + 1);
        }
    }

    public void del(String key) {
        if (this.countMap.get(key) != null) {