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