Sorry Mark, Was my mistake. I was looking here: http://www.vividsolutions.com/jts/jtshome.htm where there is no more than the jts 1.8 so I was thinking that jts 1.11 = 1.1.1 < 1.3... Anyway: at the time of my first message I was working with jts 1.11 downloaded from geomason website and got the problem. Now I tried even with jts 1.12 and got the problem... Any help? Thanks Francesco On Tue, May 8, 2012 at 4:16 PM, Mark Coletti <[log in to unmask]> wrote: > On Tue, May 8, 2012 at 5:13 PM, Francesco Pizzitutti < > [log in to unmask]> wrote: > >> Yes but Geomason do not compile with version of jts 1.3 and higher that >> are >> serializated. Any clue? >> >> >> > Silly question, is JTS 1.11 < or > JTS 1.3? I use the former. > >