I'm still a big noob at GWT but i'm trying to follow the example from the packt coockbook to get started with it,
I'm currently trying to save some information i entered in a form to my DB but i get this warning, so probably I mapped something wrong in my Service interface.
this is my interface with my mapping
And this is the warning
how do i map this correctly? and is there a way to map it in my web.xml file asswell?