Position of MenuItems: when a window with menus (JMenu) inherited from JFrame is created and made visible, the sub menus (menuitems) are positioned correctly if the window position is not changed. The window is now positioned to lets say towards the right and towards the bottom of the screen. If any of the menu items are selected, the submenus come up at a position which is offseted towards the right and bottom of the position where they should be actually visible (which is right below the menuitem). There was a bug in MRJ too about this but Apple subsequently fixed it. (Apple bug # 2287924) The above behavior is seen with all version of the Swing classes (JFC). (both 1.0 and 1.1)

Took a look at Apple's bug, and was able to fix by calling ::JMSetFrameSize() whenever a frame is moved around. Should be fixed in 1.0d6.