#fixed code
                                SqlLine()
    {
        // registerKnownDrivers ();

        sqlLineCommandCompleter = new SQLLineCommandCompleter();

        // attempt to dynamically load signal handler
        try {
            Class handlerClass = Class.forName("sqlline.SunSignalHandler");
            signalHandler = (SqlLineSignalHandler) handlerClass.newInstance();
        } catch (Throwable t) {
            handleException(t);
        }
    }
#vulnerable code 
                                void begin(String [] args, InputStream inputStream)
        throws IOException
    {
        try {
            // load the options first, so we can override on the command line
            command.load(null, null);
            opts.load();
        } catch (Exception e) {
            handleException(e);
        }

        ConsoleReader reader = getConsoleReader(inputStream);
        if (!(initArgs(args))) {
            usage();
            return;
        }

        try {
            info(getApplicationTitle());
        } catch (Exception e) {
            handleException(e);
        }

        // basic setup done. From this point on, honor opts value for showing exception
        initComplete = true;

        while (!exit) {
            DispatchCallback callback = new DispatchCallback();
            try {
                callback.setStatus(DispatchCallback.Status.RUNNING);
                dispatch(reader.readLine(getPrompt()), callback);
            } catch (EOFException eof) {
                // CTRL-D
                command.quit(null, callback);
            } catch (UserInterruptException ioe) {
                // CTRL-C
                try {
                  callback.forceKillSqlQuery();
                  output(loc("command-canceled"));
                } catch (SQLException sqle) {
                  handleException(sqle);
                }
            } catch (Throwable t) {
                handleException(t);
            }
        }

        // ### NOTE jvs 10-Aug-2004:  Clean up any outstanding
        // connections automatically.
        // nothing is done with the callback beyond
        command.closeall(null, new DispatchCallback());
    } 
                            #location 6 
                            #vulnerability type NULL_DEREFERENCE