With the default template and default print options, it takes upwards of 2 minutes between pressing print and it printing on a local printer or to a pdf writer. When it does print, it prints a double with an offset of about 200 pixles. I've attached a screen shot of the uDig view before the print and a PDF of the printed output (through file>export>print then printed through a pdf writer - PrimoPDF). This is using uDig 1.2M2 as downloaded from the website. My app behaves in the same way using the 1.2M2 and 1.2M3 SDKs.
Jody has suggested that it may be to do with the new tiled rendering modifications.