In all these cases the UI kept working OK?
Yes.
Did you ever get any sort of failure in the UI?
No.
Example: missing data, page load failure, etc?
No. nothing, I don't remember if i clicked on some button or link , or just
the stack trace arise by doing nothing.
Trying to catch this again ( i have no idea how, but trying )
For now, I noticed that from time to time this is executed:
GET
http://localhost:8080/apimanui/rest/tokenRefresh
200 OK
apiman [9:04:28 AM]>> Bearer token successfully refreshed: {
"token": "eyJhbG ... long token here",
"refreshPeriod": 240
}