JPopupmenut not working under linux / Ubuntu

Question

I was working on a project under windows and it works perfectly, but when I moved it to linux, weird things started to happen. But I won't ask more than one question in this one, Let's start with JPopupmenu not working at all. Under windows : I have a JTable and JPopupmenu which should be visible inside the JTable, I added the JPopupmenu from swing directly. Here is the trigger code :

private void jTable2MouseReleased(java.awt.event.MouseEvent evt) {                                      
    if (evt.isPopupTrigger()) {
        int rows = jTable2.getRowCount();
        if(rows>0){
             JTable source = (JTable) evt.getSource();
        int row = source.rowAtPoint(evt.getPoint());
        int column = source.columnAtPoint(evt.getPoint());

        if (!source.isRowSelected(row)) {
            source.changeSelection(row, column, false, false);
        }
        jPopupMenu1.show(evt.getComponent(), evt.getX(), evt.getY());
        }

    }
}      

As the code shows: the Popupmenu should be visible when the rows inside JTable greater than zero. It works under windows but noting happen on Linux. What did I miss here ?

Answer 1

Ok I found it, I have to add the same code in JTableMousePressed event and it will work as it should.