Title bar missing on JOSM
When launching JOSM, the title bar of the JOSM window is hidden by the Xfce top panel (see attached screenshot). Apart from also looking wrong, it also makes it rather difficult to move, resize and close the window.
The only workaround seems to be to access the window menu with Alt-space and use the keyboard to move the window so that the title bar can be accessed normally. If you maximize the window then it appears as you would expect.