Using previously acquired OAuth2 token with the Java SDK

Like I said, I can successfully make calls through HTTP calls to the REST API, so that rules out the token being altered. I have not used the disable_access_token endpoint. The Dropbox account I am testing with is my own, and I have not revoked access.

As I mentioned, I registered my app to be able to access any folder, not just the self-named one under /Apps/Piquero. However, just in case that was the issue, I tried both / and /AppsPiquero as arguments to DbxClient.getMetaWithChildren(). However the exception with the message mentioned above happens in both cases.

In the browser I click on a URL that has been mapped to a servlet in a Java webapp. That servlet does a bunch of data gathering and then uses HttpRequest.getRequestDispatcher() to forward the request onto a JSP. It uses the data to spit out the HTML for the browser in the usual MVC fashion.

The Dropbox Java SDK call which produces the exception happens in the servlet. Milliseconds later in the JSP, a call to  https://api.dropbox.com/1/account/info using the same stored access token succeeds.

I can even do

wget -O file.out -dvcS --header="Authorization: Bearer  $TOKEN$" " https://api.dropbox.com/1/metadata/auto"

on the command line with the same token gotten by shell access from the database it is stored in and get back an HTTP 200 response with the expected JSON data.

I have yet to rewrite the method using HTTP calls

I am confident that I have ruled out accidental token alteration in that the only wait it fails, ever, is when being used with the Dropbox Java SDK while concurrently being successfully used to make HTTP REST API calls.