When we dispatch an event from button A's ActionListener onto Button
B, if the event specifies a left mouse button click, it seems to be
nullified, i.e. ineffective. Does someone know the cause of the
problem and solution?

<code>
/*pseudo code*/

AbuttonActionListener{
 actionPerformed(){
   Bbutton.dispatchEvent(new MouseEvent( ......., 3 /*or 2*/)):
//BUTTON3 or 2
 }
} //....This works fine
-------------------------------
AbuttonActionListener{
 actionPerformed(){
   Bbutton.dispatchEvent(new MouseEvent( ......., 1)):
//BUTTON1==LeftMouseButton
 }
} //....This doesn't work
-----------------------------
 actionPerformed(){
   Bbutton.dispatchEvent(new ActionEvent( .......)): //LeftMousen
triggers ActionEvent
 } //.....This also doesn't work
</code