Hello Betto,
In most examples, we didn't include the generated code in our git repositories. The idea is that you build the examples using Maven as instructed in the README.md files. The Maven build of each example project will then
1. Setup the example database
2. Run the jOOQ code generator that produces the org.jooq.example.db.* classes
For instance, the JavaFX example:
In order to build / run it, run these commands on your command line:
$ pwd
/path/to/checkout/dir
$ cd jOOQ-examples/jOOQ-javafx-example
...
$ mvn clean install