A simple converter to turn json into classes
Just create a scheme file (s. example.json and example.md) and then pack the source into an executable jar:
ant clean build && ant -buildfile build_jar.xml
Then just start the jar file (as an example):
java -jar jars/json2code.jar example.json java
Of course you can also open the project in eclipse and export the jar (or start the application there).