JComboBox problem when traversing using arrow keys and it is editable

Hello,
The JComboBox I am using is editable and user needs to traverse the list using arrow keys as long as user is not selecting a particular item. But this is not achievable when combobox is editable. Any suggestion to get rid of that.
regards,
Ranjan

Huh?import java.awt.*;
import javax.swing.*;
public class Test3 extends JFrame {
public Test3() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = getContentPane();
    JComboBox jcb = new JComboBox(new String[] {"One","Two","Three"});
    jcb.setEditable(true);
    content.add(jcb, BorderLayout.NORTH);
    setSize(100,100);
public static void main(String[] args) { new Test3().setVisible(true); }
}

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<html>
<head>
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    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<button id="emptyWriteroot">Remove messages</button>
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</div>
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JComboBox problem when traversing using arrow keys and it is editable

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