JPopupMenu showing only last JMenuItem

Question

Hello,
I have a strange problem with JPopupMenu - only 1 JMenuItem (last one) is shown in the menu although there are 2 of them there.
Menu is created by following sequence:
JPopupMenu popup = new JPopupMenu;
JMenuItem item1 = new JMenuItem();
item.setText( "ft" );
popup.add( item1 );
JMenuItem item2 = new JMenuItem();
item.setText( "m" );
popup.add( item2 );
Menu is activated (shown) after a button is pressed in the code called from button ActionListener:
// parameter is ActionEvent aEvent
popup.show( ( Component ) aEvent.getSource(), 0, 0 );
popup.pack(); // does not affect the behaviour, if omitted
// dubugging: trying to make sure menu has more than 1 element           
MenuElement[] elems = popup.getSubElements();
for( MenuElement elem: elems )
System.out.println( elem );
The code works, menu appears, but only with last item.
The debug printout shows, that menu has 2 elements:
javax.swing.JMenuItem[,0,0,0x0,layout=java.awt.BorderLayout,alignmentX=0.0,align
mentY=0.0,border=javax.swing.plaf.metal.MetalBorders$MenuItemBorder@3b1f38,flags
=264,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disable
dSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,ri
ght=2],paintBorder=true,paintFocus=false,pressedIcon=,rolloverEnabled=false,roll
overIcon=,rolloverSelectedIcon=,selectedIcon=,text=ft]
javax.swing.JMenuItem[,1,3,39x20,layout=java.awt.BorderLayout,alignmentX=0.0,ali
gnmentY=0.0,border=javax.swing.plaf.metal.MetalBorders$MenuItemBorder@3b1f38,fla
gs=264,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disab
ledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,
right=2],paintBorder=true,paintFocus=false,pressedIcon=,rolloverEnabled=false,ro
lloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=m]
Do you have an idea, why just last item is shown ?
When I changed
popup.show( ( Component ) aEvent.getSource(), 0, 0 );
to
popup.show( mainFrame, 0, 0 );
the menu appeared in the new location, but on change of behaviour ( my first idea was, that menu is clipped to the size of button).
Thanks.
Martin

Answer 1

Don't show us bits and pieces of code. Show us a demo program of how you are creating and attempting to show the popup menu. The code you post may not be related to the problem.
Also, don't forget to use the "formatting tags" so the code retains its original formatting.