private String getFrameworkCode() {
        return "public interface Producer extends ConfigInstance.Producer {\n" + //
                "  void getConfig(Builder builder);\n" + //
                "}";
    }
\n" + //
                " * This class represents the root node of " + root.getFullName() + "\n" + //
                " *\n" + //
                "" + root.getCommentBlock(" *") + "
configgen/src/main/java/com/yahoo/config/codegen/JavaClassBuilder.java