JDK Version:1.2beta3-J
OS: Win95 + WinNT
Locale: zh

On win95, when using removeAll to remove all the items of a List,
it is really too slow. But in Solaris, it works very quickly.

===========================CheckList.java===========================
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class CheckList implements ActionListener {
   Button button;
   List list;
   public static void main(String args[]) {
       new CheckList();
   }

   public CheckList() {
       Frame f = new Frame("Check List");
       f.setLayout(new BorderLayout());
       button = new Button("Remove All");
       button.addActionListener(this);
       list = new List(20);
       for (int i = 0; i < 800; i ++) {
           list.add("My number is " + i);
       }
       f.add("North", button);
       f.add("South", list);
       f.pack();
       f.setVisible(true);
    }

   public void actionPerformed(ActionEvent e) {
        if (list.getItemCount() > 0) {
           list.removeAll();
           list.invalidate();
       }
   }


}
=====================================================================

java CheckList

wait, wait, and wait..........

jim.hu@prc 1998-03-05

In Solaris, List add is also too slow.
in JDK1.1.3 all removeAll and add methods works very quickly.
I have filed this bug for several days, but till now, I get no
response. Every engineer who is doing java programming, and using
List in his program will find it unacceptable.
Evry one who want to see this problem can run the short
program in Win95 and Solaris.

jim.hu@prc 1998-03-12