/**
     * 
     */
    public void populateList(ListInterface grList)
    {        
        ls_group = new JList(getListModel(grList));
        LabelListCellRenderer renderer = new LabelListCellRenderer();
        ls_group.setCellRenderer(renderer);
                             ls_group.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        JScrollPane grScrPane = new JScrollPane(ls_group,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.insets = ins;
        gbc.fill = GridBagConstraints.BOTH;
        add(grScrPane, gbc);
    }

public DefaultListModel getListModel(ListInterface labels)
    {
        DefaultListModel model = new DefaultListModel();
        for(int i = 1; i <= labels.size(); i++) {
            model.addElement(labels.get(i));
        }
        return model;
    }

import java.awt.*;
import java.awt.event.*;
import java.util.*;

import javax.swing.*;
import javax.swing.event.*;

class CheckListCellRenderer extends JCheckBox
    implements ListCellRenderer
{
    protected static Border m_noFocusBorder = 
        new EmptyBorder(1, 1, 1, 1);
        
    public CheckListCellRenderer()
    {
        super();
        setOpaque(true);
        setBorder(m_noFocusBorder);
    }
    
    public Component getListCellRendererComponent(JList list, 
        Object value, int index, boolean isSelected, boolean cellHasFocus)
    {
        setText(value.toString());
        
        setBackground(isSelected ? list.getSelectionBackground() :
            list.getBackground());
        
        setForeground(isSelected ? list.getSelectionForeground() :
            list.getForeground());
            
        CheckListItem data = (CheckListItem)value;
            setSelected(data.isSelected());
            
        setFont(list.getFont());
        setBorder((cellHasFocus) ?
        UIManager.getBorder("List.focusCellHighlightBorder")
            : m_noFocusBorder);
            
        return this;
    }
}