Java jlist nullpointerexception hatası yardım

aramaoldumu = 0;
                                
DefaultListModel aramamodel = new DefaultListModel();

JList aramalist = new JList(aramamodel);
aramalist.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
aramalist.setBounds(765, 30, 175, 325);
mesaj.add(aramalist);

aramayapildimi = 0;
                                
aramat.addKeyListener(new KeyAdapter () {
                                	
  @Override
                                	
  public void keyPressed(KeyEvent e1) {
                                		
    if(e1.getKeyCode() == KeyEvent.VK_ENTER) {
                                			
     int ymargin = 0;
                                			
     String aramasonuc = aramat.getText();
                                			
     try {
                                			
      Statement st14 = baglanti.createStatement();
      ResultSet rs14 = st14.executeQuery("select * from mesaj.kullanici where kul like '%" + aramasonuc + "%' ");
                                			
      aramayapildimi++;
                                					
      if(aramayapildimi == 2) {
                                						
        aramamodel.removeAllElements();
                                						
        aramayapildimi = 1;
                                						
      }
                                					
      while(rs14.next()) {
                                				
        String sonuckuls = rs14.getString("kul");
                                				
        aramamodel.addElement(sonuckuls);