I decided to give SmartGWT a run, and specifically the RestDataSource functionality using Jersey. To make things easier, I'm using Spring Roo to set up my project and scaffold much of the boilerplate code, configurations etc. My approach is to have my domain objects exposed as RESTful web services and create a matching SmartGWT DataSource in order to show them in a GUI. Let's get started, shall we? First of all, you'll need Spring Roo (unless you just download the project source code and want to run it directly). I'm using the following Roo script to start things off: project --topLevelPackage com.technowobble persistence setup --provider HIBERNATE --database HYPERSONIC_IN_MEMORY entity --class ~.domain.Message field string --fieldName value controller class --class ~.ws.MessageResource --preferredMapping rest dependency add --groupId com.sun.jersey --artifactId jersey-server --version 1.3 dependency add --groupId com.sun.jersey.contribs --artifactId jersey-s...