jaxb source sets

[jvsrvcs]

Would it be possible to flesh out this section a little more and to give some examples, at first glance I have no idea what this section refers to or what I am supposed to do. Do I include this in my build.gradle and also what are the most common default settings (at a very minimum, what do I need?)

the jaxb source directory sets

sourceSets {
    main {
        jaxb {
            <setup srcDir, includes, excludes, output, etc>
        }
    }

    test {
        jaxb {
            <setup srcDir, includes, excludes, output, etc>
        }
    }
}