When List.removeAll() is called on an empty java.awt.List, the following message
is generated:

Warning:
    Name: slist
    Class: XmList
    Item(s) to be deleted are not present in the list.

The problem does not occur on the win32 JDK.

Below is a test case. Click on the "remove all" button once to remove the list.
Clicking a second time will then produce the warning message.

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import java.awt.*;
import java.awt.event.*;

class Main extends Frame implements ActionListener {
    List l = new List(10,
        false);
    Button b;

    Main() {
        super("removeAll Example");

        for (int i = 0; i < 10; i++) {
            l.addItem("item "+i);
        }

    b = new Button("Remove All " + l.getRows() + " Rows");
        add(l, BorderLayout.CENTER);
        add(b, BorderLayout.SOUTH);
        b.addActionListener(this);
        pack();
        show();
    }

    static public void main(String[] args) {
        new Main();
    }

    public void actionPerformed(ActionEvent evt) {
        l.removeAll();
    }
}