This is reproducible only on a Red Hat Enterprise Linux AS 3.0 system. It is not reproducible on JDS linux or solaris. This is reproducible with AWT PIT build for mustang b51.

There are three issues, I believe all these are related. Attached is an automated testcase to reproduce the issue. The testcase shows a Frame. On clicking a button on the frame, a window is displayed. On clicking a button on Window, a modal dialog is displayed. Even though the dialog size is set as (150, 150), getSize returns the screen size - the value is printed out in the terminal window.

When the button in the dialog is clicked, a PrintDialog is shown, but the PrintDialog is shown at 0, 0 instead of the center of the screen.

Now the PrintDialog and other windows are disposed and the dialog is displayed again. This time the dialog resizes to the screen size.