Name: wl91122 Date: 08/20/99


When I build a text message using System.getProperty("line.separator") and then display it in a JOptionPane on Windows, a non-printable character is displayed. JOptionPane
and possibly other GUI components should properly recognize and display System.getProperty("line.separator").

Sample code to reproduce the problem:

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

public class OptionBug extends JFrame {
    boolean packFrame = false;
    JButton pressButton = new JButton();
    FlowLayout flowLayout1 = new FlowLayout();

    //Construct the application
  public OptionBug() {
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        pressButton.setText("Press");
        pressButton.addActionListener(new OptionBug_pressButton_actionAdapter(this));
        this.getContentPane().setLayout(flowLayout1);
        this.getContentPane().add(pressButton, null);
    }

    void pressButton_actionPerformed(ActionEvent e) {
        String terminator = System.getProperty("line.separator");
        JOptionPane.showMessageDialog(
            this,
            "System.getProperty(\"line.separator\")" +
                terminator +
                "Does not work in JOptionPane & possibly other text objects." +
                terminator +
                "On Windows a non-printable character appears.",
            "JOptionPane does not recognize platform independant EOL.",
            JOptionPane.INFORMATION_MESSAGE);
    }

    public static void main(String[] args) {
        OptionBug bug = new OptionBug();
        bug.pack();
        bug.setVisible(true);
    }
}

class OptionBug_pressButton_actionAdapter implements java.awt.event.ActionListener {
    OptionBug adaptee;

    OptionBug_pressButton_actionAdapter(OptionBug adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.pressButton_actionPerformed(e);
    }
}
(Review ID: 94177)
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