Eu quero me conectar ao Oracle comoSYS do SQL * Plus em Java. Mas não consigo me conectar. Mas eu consigo conectar como usuário nomeadoSCOTT. Meu snippet de código é o seguinte:

public static void test_script () {  

        String fileName = "@t.sql";  
        //t.sql contains "show user" command
        String sqlPath = "D:\\";  

        String sqlCmd = "sqlplus";  
       // String arg1   = "scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=hostname)(Port=PORT ID))(CONNECT_DATA=(SID=SID)))";
        String arg1   = "sys as sysdba/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=hostname)(Port=PORT ID))(CONNECT_DATA=(SID=SID)))";

       //String arg1="/ as sysdba";

        String arg2= fileName;
        //String arg2="conn /as sysdba";
        try {  
            String line;  
            ProcessBuilder pb = new ProcessBuilder(sqlCmd, arg1,arg2);  
            Map<String, String> env = pb.environment();  
            env.put("VAR1", arg1);  
            env.put("VAR2", arg2);  
            //env.put("VAR3", arg3);
            pb.directory(new File(sqlPath));  
            pb.redirectErrorStream(true);  
            Process p = pb.start();  
            BufferedReader bri = new BufferedReader  
            (new InputStreamReader(p.getInputStream()));  
            BufferedReader bre = new BufferedReader  
            (new InputStreamReader(p.getErrorStream()));  
            while ((line = bri.readLine()) != null) {  
            System.out.println(line);  
            }  
            bri.close();  
            while ((line = bre.readLine()) != null) {  
            System.out.println(line);  
            }  
            bre.close();  
            System.out.println("\n\n\n");
            System.out.println("Done.");  
            }  
            catch (Exception err) {  
                err.printStackTrace();  
            }  
        }  
   } 

Quando tento executar esse código, encontro este erro:

SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 10 11:08:59 2014

Copyright (c) 1982, 2010, Oracle.  All rights reserved.


SQL*Plus: Release 11.2.0.1.0 Production

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

Use SQL*Plus to execute SQL, PL/SQL and SQL*Plus statements.

Usage 1: sqlplus -H | -V

    -H         Displays the SQL*Plus version and the
           usage help.
    -V         Displays the SQL*Plus version.

Usage 2: sqlplus [ [<option>] [{logon | /nolog}] [<start>] ]
...

... e o restante das informações de 'uso' do SQL * Plus.

Estou fornecendo erradoarg1 argumento ou existe alguma outra maneira de conectar-se comoSYS no Oracle através de Java.