public class DownloadActivity extends ListActivity{

 private Thread    thread;        //스레드
 private Handler   handler= new Handler();    //핸들러
 private TextView   text1;        //텍스트뷰
 private ProgressDialog  dialog;        //다이얼로그
 private int    count=0;       //수행횟수
 private int    repeat=0;       //반복횟수
 private long    datasize=0;       //데이터사이즈
 private double    []DownResult=new double[1000];  //결과값을 저장할 배열설정(최대 1000번의 반복수행가능)
 private boolean   flag=false;       //flag
 
 
 TextView tv;
 String [] items;
 String fileName [];
 String Server;
 String ID;
 String PassWord;
 
 private List<String> item = null;//추가된 부분
 private List<String> path = null;
 private TextView myPath;
 FTPClient con;
 FTPFile[] files;
 
 
 
 
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.download);
 
     Intent intent=getIntent();   //인텐트를 통해 각각의 값들을 받아옴
    
      String Server   =intent.getStringExtra("data_ServerAddress");  //서버이름
      String ID    =intent.getStringExtra("data_ID");   //ID
      String PassWord  =intent.getStringExtra("data_PassWord"); //패스워드
      String TimeOut    =intent.getStringExtra("data_TimeOut");  //타임아웃
     
      //String []items=new String[10000];
      //ArrayList<String> al = new ArrayList<String>();
      //ArrayList<String> items = new ArrayList<String>();
     
      try{
       con = new FTPClient();
          con.connect("ftp.imrc.kist.re.kr", 21);
          con.login("gre_kist", "gre1003");
          con.enterLocalPassiveMode();
          con.setFileType(con.BINARY_FILE_TYPE);
          Log.v("HES","End Connect");
          }catch(Exception e){
           e.printStackTrace();
         }
         Log.v("HES","접속완료");
         getDir("/");

     
    
 } 
         
     
  private void getDir(String dirPath){
  
   try{
          con.changeWorkingDirectory(dirPath);
          files=con.listFiles();
        
       item = new ArrayList<String>();
       path = new ArrayList<String>();
       
       FTPFile[] files = con.listFiles();
       
       if(!dirPath.equals("/")){ //루트 디렉토리가 아닐 경우
        //item.add("/");     
        path.add("/");
        //item.add("../");     
        
       }
       
       
       
       Log.v("HES","Test1");
       for(int i=0; i < files.length; i++){      
        //File file = files[i];
        
        path.add(con.getStatus(dirPath).toString());
        
         String fileSize;
             
             if(files[i].getSize()>=1000000)
              fileSize=String.format("%.1f",Double.valueOf(((double)(files[i].getSize())/((double)(1048576))) ))+"MB";
            
             else if(files[i].getSize()>=1000)
              fileSize=String.format("%.1f",Double.valueOf(((double)files[i].getSize())/((double)(1024))))+"KB";
            
             else
              fileSize=Long.toString(files[i].getSize())+"bytes";
             
        
        if(files[i].isDirectory())
         {
         item.add(files[i].getName() + "/");
         }
        else       
         item.add(files[i].getName().toString()+fileSize);
         }
       
       
       Log.v("HES","Test2");
       
    ArrayAdapter<String>aa=new ArrayAdapter<String>(DownloadActivity.this,R.layout.downloadrow,R.id.label,items);
    
    Log.v("HES","Test3");
     setListAdapter(aa);
     tv=(TextView)findViewById(R.id.selection);
     
  
       
       }catch(Exception e)
       {
        e.printStackTrace();
       }
  
  
  
  }
 
         
     
      public void onListItemClick(ListView l,View v,int position, long id){
       //tv.setText(items[position]+"클릭됨");
      
      
      
       if (files[position].isDirectory()){//폴더일경우
           if(files[position].getSize()!=0){
            
            getDir("/"+files[position].getName().toString());
            }
          
          else{   
           new AlertDialog.Builder(this).setIcon(R.drawable.icon).setTitle("[" + files[position].getName() + "] folder can't be read!")
           .setPositiveButton("OK",new DialogInterface.OnClickListener(){             
             public void onClick(DialogInterface dialog, int which) {      
                   }     
             }).show();
           }
           }
        
          else{  
           new AlertDialog.Builder(this)
           .setIcon(R.drawable.icon)
           .setTitle("[" + files[position].getName() + "]")
           .setPositiveButton("OK",new DialogInterface.OnClickListener(){
             public void onClick(DialogInterface dialog, int which){
             }
           }).show();
          }
       }
     
     
     
 
   }
    

빨간줄 명령어 하나가 안먹히네여 ;;

대체 왜그런거죠?