output: #fixed code
                                  public void clear() {
  
          if (staticResourceHandlers != null) {
              staticResourceHandlers.clear();
              staticResourceHandlers = null;
          }
  
          staticResourcesSet = false;
          externalStaticResourcesSet = false;
      }
input: #vulnerable code 
                                  public void clear() {
  
          if (staticResourceHandlers != null) {
              staticResourceHandlers.clear();
              staticResourceHandlers = null;
          }
  
          if (jarResourceHandlers != null) {
              jarResourceHandlers.clear();
              jarResourceHandlers = null;
          }
  
          staticResourcesSet = false;
          externalStaticResourcesSet = false;
      } 
                              #location 9 
                              #vulnerability type THREAD_SAFETY_VIOLATION