output: #fixed code
                                  @Override
      public BrowserManager useTaobaoMirror() {
          return useTaobaoMirror("wdm.phantomjsDriverTaobaoUrl");
      }
input: #vulnerable code 
                                  @Override
      public BrowserManager useTaobaoMirror() {
          String taobaoUrl = null;
          try {
              taobaoUrl = getString(getString("wdm.phantomjsDriverTaobaoUrl"));
              driverUrl = new URL(taobaoUrl);
          } catch (MalformedURLException e) {
              String errorMessage = "Malformed URL " + taobaoUrl;
              log.error(errorMessage, e);
              throw new WebDriverManagerException(errorMessage, e);
          }
          return instance;
      } 
                              #location 12 
                              #vulnerability type THREAD_SAFETY_VIOLATION