int  pi =  5 ;
    ArrayList po =  new  ArrayList();
     while  (poind.next())
    {
          po.add(poind.getString( 2 ).trim()+"  "+poind.getString( 1 ).trim());
    }
    String poSTR = ((String)po.get(pi)).substring( 0 , 5 );
    pif.setText(poSTR);


// Здесь відет такую ошибку:

javax.swing.text.BadLocationException: Invalid location
	at javax.swing.text.GapContent.getChars(GapContent.java: 169 )

   
    poind.getString( 2 ).trim()+"  "+poind.getString( 1 ).trim())
    

  new  ListAutoCompleter(pif,po,true);
 pif.addKeyListener( new  KeyAdapter()
                    {
                         public   void  keyReleased(KeyEvent e)
                        {
                             if  (e.getKeyCode()== 10 )
                            {
                                 int  pi = po.indexOf(pif.getText().trim());
                                System.out.println(pi);
                                System.out.println((String)po.get(pi));
                                String poSTR = ((String)po.get(pi)).substring( 0 , 5 );
                                pif.setText(poSTR);
                                adf.setText(((String)po.get(pi)).substring( 6 ,((String)po.get(pi)).trim().length()));
                                pifLAC.popup.setVisible(false);
                                adf.requestFocus();
                            }
                        }
                    });

 import  javax.swing.text.BadLocationException;
 import  javax.swing.text.JTextComponent;
 import  java.util.ArrayList;
 import  java.util.List;
 import  java.util.Iterator;

 public   class  ListAutoCompleter  extends  AutoCompleter{

     private  List completionList;
     private   boolean  ignoreCase;

     public  ListAutoCompleter(JTextComponent comp, List completionList,  boolean  ignoreCase){
         super (comp);
         this .completionList = completionList;
         this .ignoreCase = ignoreCase;
    }

    // update classes model depending on the data in textfield
     protected   boolean  updateListData(){
        String value = textComp.getText();

         int  substringLen = value.length();

        List possibleStrings =  new  ArrayList();
        Iterator iter = completionList.iterator();
         while (iter.hasNext()){
            String listEntry = (String)iter.next();
             if (substringLen>=listEntry.length())
                 continue ;

             if (ignoreCase){
                 if (value.equalsIgnoreCase(listEntry.substring( 0 , substringLen)))
                    possibleStrings.add(listEntry);
            } else   if (listEntry.startsWith(value))
                possibleStrings.add(listEntry);
        }

        list.setListData(possibleStrings.toArray());
         return  true;
    }

    // user has selected some item in the classes. update textfield accordingly...
     protected   void  acceptedListItem(String selected){
         if (selected== null )
             return ;

         int  prefixlen = textComp.getDocument().getLength();

         try {
            textComp.getDocument().insertString(textComp.getCaretPosition(), selected.substring(prefixlen),  null );
        }  catch (BadLocationException e){
            e.printStackTrace();
        }
        popup.setVisible(false);
    }
}