Invalid token expiry parsing

[schambon]

Found by chance, needs investigation: the TokenRefreshInterceptor doesn't kick in when it should (see portal logs extracts: last request yesterday at 18:14, first request this morning at 09:20, no token refresh and therefore 401s all around).

A cursory debug session in the interceptor shows than a newly-minted access token has an expiry time sometime in the 47th millennium AD, so the issue appears to be with token expiry time parsing / storing in Oasis-Spring-Integration, so we need to look into that.

Portal log extract:

| DEBUG| 18:14:02.623 | org.oasis_eu.spring.util.KernelLoggingInterceptor - Response headers: 
Date:   [Mon, 11 Aug 2014 16:14:02 GMT]
Content-Type:   [application/json]
Content-Length: [4219]
Via:    [1.1 oasis-demo.atolcd.com]
Strict-Transport-Security:  [max-age=2592000]
Keep-Alive: [timeout=2, max=244]
Connection: [Keep-Alive]

| INFO | 18:14:02.627 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property local_id
| INFO | 18:14:02.627 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property instance_id
| INFO | 18:14:02.627 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property service_uri
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property local_id
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property instance_id
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property service_uri
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property local_id
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property instance_id
| INFO | 18:14:02.628 | org.oasis_eu.portal.core.model.catalog.CatalogEntry - Discarding unknown property service_uri
| DEBUG| 09:20:17.763 | org.oasis_eu.spring.util.KernelLoggingInterceptor - Intercepted GET request to: https://oasis-demo.atolcd.com/d/memberships/user/a399684b-4ea3-49c3-800b-b8a0bf1131cb?start=0&limit=20
| DEBUG| 09:20:17.763 | org.oasis_eu.spring.util.KernelLoggingInterceptor - Request headers: 
Accept: [application/json, application/*+json]
Authorization:  [Bearer eyJpZCI6IjNiNTU1ODcwLTM5MTgtNDU4Yi05MDYwLTgwZjQ5NjYyNGZhZC81Y0RQMEthRG5zOGo5MWw4cnNIY0VnIiwiaWF0IjoxNDA3NzczNDI5NjQ2LCJleHAiOjE0MDc3NzcwMjk2NDZ9]
Content-Length: [0]

| DEBUG| 09:20:17.763 | org.oasis_eu.spring.util.KernelLoggingInterceptor - Request body: 
| DEBUG| 09:20:17.984 | org.oasis_eu.spring.util.KernelLoggingInterceptor - Response: 401 Unauthorized