When a JOptionPane is created in respnse to an action event, a NullPointerException is generated:

%java JOptionPaneTest
java.lang.NullPointerException: NullPointerException
        at sun.awt.motif.MDialogPeer.pShow(Native Method)
        at sun.awt.motif.ModalThread.run(Compiled Code)

This occurs in 1.2 on Solaris only.

Test case:

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

public class JOptionPaneTest extends JFrame implements ActionListener {
    Object options[] = new Object[] { "OK" };
    public JOptionPaneTest(String title) {
        super(title);
        getContentPane().setLayout(new BorderLayout());
        JTextField tf = new JTextField("Hit Enter Twice Quickly Here");
        getContentPane().add(tf, BorderLayout.NORTH);
        tf.addActionListener(this);
    }

    public void actionPerformed(ActionEvent ae) {
        JOptionPane.showOptionDialog(JOptionPaneTest.this, "Fail", "Failure", JOptionPane.O
K_OPTION, JOptionPane.QUESTION_MESSAGE, (Icon)null, options, options[0]);
    }

    public static void main(String[] argv) {
        JOptionPaneTest dt = new JOptionPaneTest("Test");
        dt.setSize(300, 300);
        dt.show();
    }
}
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