Scrolling from another thread

[Onopin Mikhail]

Hello!

I can't understand why the m_scrollPane (see code below) is auto scroll to
end while adding JTextArea.

//---- start
import javax.swing.*;
import java.awt.*;

public class Main
{
 public static JFrame m_mainFrame;
 public static JPanel m_panel = new JPanel();
 public static JScrollPane m_scrollPane;

 public static Dimension m_size = new Dimension(200, 300);

 public static void fill()
 {
  JTextArea text;

  m_panel.removeAll();

        for(int i = 0; i < 100; i ++) {
            text = new JTextArea("Text");
            text.setLineWrap(true);
            text.setWrapStyleWord(true);
            text.setEditable(false);

            m_panel.add(text);
        }

  m_mainFrame.validate();
  m_mainFrame.repaint();
 }


 public static void main(String args[])
 {
  m_mainFrame = new JFrame();
  m_mainFrame.setSize(m_size);
  m_mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  m_mainFrame.show();

  m_panel.setLayout(new BoxLayout(m_panel, BoxLayout.Y_AXIS));
  m_scrollPane = new JScrollPane(m_panel);

  m_mainFrame.getContentPane().add(m_scrollPane, BorderLayout.CENTER);

  // if easy call fill() then it don't scroll to end
  // but if call hapens from another thread then it scroll to end
  SwingUtilities.invokeLater(new Runnable(){
   public void run() {
    fill();
   }
  });
 }
}

//---- end

What wrong?

Onopin Mikhail.([EMAIL PROTECTED])

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