How is Jackson able to be used to deserialize GraphQL queries?

[zleonov]

My last remaining neuron is firing blanks...

It's clear that Jackson is used by graphql-java-tools to deserialize GraphQL queries to Java Objects. I am not talking about the request map (containing the query, operationName, variables parameters). I am talking about the actual query itself.

I have confirmed this, since my Java Objects use some Jackson annotations.

So my question is: How is that possible?

Does graphql-java-tools convert GraphQL syntax to Json? Does Jackson understand GraphQL dialect? What gives?
Or am I completely bonkers and don't understand something?