public static void main (String [] args) {
	Display display = new Display ();
	Shell shell = new Shell (display);
	shell.setLayout(new GridLayout(2, false));
	Composite c1 = new Composite (shell, SWT.BORDER);
	c1.setLayoutData(new GridData(100, 100));
	Composite c2 = new Composite (shell, SWT.BORDER);
	c2.setLayoutData(new GridData(100, 100));
	Menu menu = new Menu (shell, SWT.POP_UP);
	MenuItem item = new MenuItem (menu, SWT.PUSH);
	item.setText ("Popup");
	c1.setMenu (menu);
	c2.setMenu (menu);
	shell.setMenu (menu);
	shell.setSize (300, 300);
	shell.open ();
	while (!shell.isDisposed ()) {
		if (!display.readAndDispatch ()) display.sleep ();
	}
	display.dispose ();
}