Similar but with Go and for Postgres if you are looking for something like that. Used it in the past and works well for some quick prototyping: https://postgres.rest/
(At least it's not mentioned in the docs)
Though postgrest does support openapi (previously swagger), so you can use the swagger generator to emit a java client library. https://editor.swagger.io/
xmysql now supports
+ group by
+ group by, order by
+ aggregate
+ single file upload, multiple file upload and download file
+ where clause on list of resource
+ where clause on list of nested resource