public class Person {
  private String id;
  private String name;
  ...
  private Money[] earnings; // Money implements Serializable
  private List<Money> expenses; // Money implements Serializable
}

public class PersonMessageMarshaller implements MessageMarshaller<org.kie.kogito.codegen.data.Person> {

  public java.lang.Class<org.kie.kogito.codegen.data.Person> getJavaClass() {
    return org.kie.kogito.codegen.data.Person.class;
  }

  public String getTypeName() {
    return "org.kie.kogito.test.Person";
  }

  public org.kie.kogito.codegen.data.Person readFrom(ProtoStreamReader reader) throws IOException {
    ...
    value.setEarnings((Array) (reader.readArray("earnings", java.io.Serializable.class))); // does not compile due to Array cast which is not valid
    value.setExpenses((Collection) (reader.readCollection("expenses", new java.util.ArrayList(), java.io.Serializable.class))); // does not compile due to Collection which is not valid
  }

  public void writeTo(ProtoStreamWriter writer, org.kie.kogito.codegen.data.Person t) throws IOException {
    ...
    writer.writeCollection("expenses", t.getExpenses(), java.io.Serializable.class); // does not compile due to missing cast
  }
}