On Redhat Linux 6.1 and Merlin 1.4.0beta-b43, typing in a JTextField
only echoes boxes.

The following test case reproduces the bug.

import javax.swing.*;
import java.awt.*;
import javax.swing.text.*;

public class caps extends JPanel {

    public static void main(String args[]) {
        JFrame jf=new JFrame();
        jf.getContentPane().add(new JTextField());
        jf.setSize(300,100);
        jf.setVisible(true);

    }
}