output: #fixed code
                                  protected static void setupTxManager() throws SQLException, IOException {
          TransactionFactory.getTransactionProvider().getTransactionContext().setupTxManager(config, getUrl());
      }
input: #vulnerable code 
                                  protected static void setupTxManager() throws SQLException, IOException {
          TransactionFactory.getTransactionFactory().getTransactionContext().setupTxManager(config, getUrl());
      } 
                              #location 2 
                              #vulnerability type NULL_DEREFERENCE