Unclear sentences in Akka Projection docs

[mckeeh3]

Short description

There are a few sentences in the Akka Projections does that are unclear.

Details

On this page - https://doc.akka.io/docs/akka-projection/current/getting-started/setup-your-app.html#setup-your-application

These sentences:

Note that we are using the jdocs.scaladsl package. You may use any package, but we include this package in snippets throughout the guide.

Not clear what this means. Especially when viewing Java code samples.

[ignasi35]

Also, the link in:

For Jackson serialization to work correctly in Java projects you must use the 
javac compiler parameter -parameters when building your project. In maven you
can add an argument to maven-compiler-plugin plugin under compilerArgs (see an example here). 

is broken. (Java only)