protected static boolean override(ProtoModule module, Proto proto)
    {
        String pkg = proto.getPackageName();
        String jpkg = proto.getJavaPackageName();
        String opkg = module.getOption(pkg);
        String ojpkg = module.getOption(jpkg);
        boolean override = false;
        if (opkg != null && opkg.length() != 0)
        {
            proto.getMutablePackageName().override(opkg);
            override = true;
        }
        if (ojpkg != null && ojpkg.length() != 0)
        {
            proto.getMutableJavaPackageName().override(ojpkg);
            override = true;
        }
        return override;
    }
Returns true if there was no previous formatter with the same name.
protostuff-compiler/src/main/java/io/protostuff/compiler/STCodeGenerator.java