torial/
AddressBookProtos.java
</code></pre>
<p>To have <code>lein</code> compile protobuf <code>.java</code> source files to <code>.class</code> that can be used from Clojure, we need to make sure that <code>lein</code> knows about our Java sources – with do this with the <code>:java-source-paths</code> key in the <code>project.clj</code> file, either at the top-level or in an appropriate profile.</p>
<p>For example, this is what the Clojure protobuf project has set, using the <code>:test</code> profile: