What runtime does Spring utilize that Go doesn't have from ... say .. the XML conf files era of Spring? I understand annotations and classpath scanning are enti

What runtime does Spring utilize that Go doesn't have from ... say .. the XML conf files era of Spring? I understand annotations and classpath scanning are entirely different animals. I guess AOP magic doesn't exist either. Json/Yaml versions of the xml era should be possible. I guess no xml namespace magic (which I hated)...but a consistent object graph specification would seem useful.