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Name: rmT116609 Date: 04/28/2004
FULL PRODUCT VERSION :
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32c)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32c, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Linux fuji 2.4.20 #2 SMP Tue May 13 19:03:46 CEST 2003 i686 unknown unknown GNU/Linux
EXTRA RELEVANT SYSTEM CONFIGURATION :
none
A DESCRIPTION OF THE PROBLEM :
A mouse click event is dispatched after a mouse press-drag-release sequence has occurred. No click event should be generated if the mouse is dragged between the press and release events.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Compile and run the attached test case.
2. Click, drag and release the mouse in the window.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Mouse pressed
Mouse dragged
...
Mouse dragged
Mouse released
ACTUAL -
Mouse pressed
Mouse dragged
...
Mouse dragged
Mouse released
Mouse clicked
Note the unexpected click event at the end.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
none
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ExtraClickDemonstration extends JComponent {
public ExtraClickDemonstration() {
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
System.err.println("Mouse pressed");
}
public void mouseReleased(MouseEvent e) {
System.err.println("Mouse released");
}
public void mouseClicked(MouseEvent e) {
System.err.println("Mouse clicked");
}
});
addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
System.err.println("Mouse dragged");
}
});
}
public static void main(String[] args) {
JFrame frame = new JFrame("Extra Click Demonstration");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new ExtraClickDemonstration(), BorderLayout.CENTER);
frame.setSize(new Dimension(480, 300));
frame.setVisible(true);
}
}
---------- END SOURCE ----------
Release Regression From : 1.4.2_04
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.
(Incident Review ID: 260137)
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