private void myListMousePressed(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_myListMousePressed
        // TODO add your handling code here:
        if( evt.getButton() == MouseEvent.BUTTON2 ) {
            myList.clearSelection();
            Rectangle r = myList.getCellBounds( 0, usernames.size()-1 );
            if( r!=null && r.contains(evt.getPoint()) ) {
                    int index = myList.locationToIndex(evt.getPoint());
                    myList.setSelectedIndex(index);
            };
        }
    }//GEN-LAST:event_myListMousePressed