Document return type of VaultUserContext.resolve().
@@ -219,6 +219,10 @@ public class VaultUserContext extends TokenInjectingUserContext {
* pending retrieval operation which will ultimately be completed with
* the value of all secrets mapped to that token.
*
+ * @return
+ * A Map of token name to the corresponding String value retrieved for
+ * that token from the vault.
+ *
* @throws GuacamoleException
* If the value for any applicable secret cannot be retrieved from the
* vault due to an error.
