Bug 6524352 support for high-resolution mouse wheel  has been  fixed in case that the MouseWheelListener is attached to a Frame or JFrame.

However, if the MouseWheelListener is tied to an AWT panel, the issue persists:



import java.awt.event.MouseWheelListener;
import java.awt.event.MouseWheelEvent;
//import javax.swing.*;
import java.awt.*;

public class Jmouse2 extends Frame {

    public Jmouse2() {
        super("Jmouse2");
        this.setLayout(new BorderLayout());
        Panel ds_pnl = new Panel();
        ds_pnl.setBackground(Color.green);
        this.add(ds_pnl, BorderLayout.CENTER);
        ds_pnl.addMouseWheelListener(new MouseWheelListener() {
            public void mouseWheelMoved(MouseWheelEvent e) {
                System.out.println(e);
            }
        });
    }

    public static void main(String[] args) {
        Jmouse2 ms = new Jmouse2();
        ms.setVisible(true);
    }
}