Alex,
It's bug in `oxd-spring` project. In logs we can see that `oxd-server` returns response successfully.
```
2017-12-04 11:05:01,189 TRACE [org.xdi.oxd.server.Processor] Command: {"command":"get_user_info","params":{"oxd_id":"58d0003d-b306-40e1-afcd-037fd67e948a","access_token":"9700dc13-08b6-4c5d-8072-49142eec403e"}}
2017-12-04 11:05:01,216 TRACE [org.xdi.oxd.server.Processor] Send back response: {"status":"ok","data":{"claims":{"sub":["LmUTKKqQda2PYqELixhHbgzuvftCIbiHpNq958zj6ZM"],"email_verified":["true"],"name":["Default Admin User"],"inum":["@!17E3.A5EE.8587.6492!0001!384E.5254!0000!A8F2.DE1E.D7FB"],"email":["admin@authdev.navvis.com"]},"refresh_token":null,"access_token":null}}
```
For now please use oxd java client:
```
https://gluu.org/docs/oxd/3.1.1/libraries/languages/java/
https://github.com/GluuFederation/oxd/tree/master/oxd-client
```
Ticket opened here
```
https://github.com/GluuFederation/oxd-spring/issues/6
```
Thanks,
Yuriy Z