Swshenoy/bug fix - Githubissues

https://rb.corp.linkedin.com/r/3166582/ Added Exception handling and logging Sample application E2E testing and bug fix. The issues addressed are as below:

[x] Redirection issue. Page Navigation fixed.
[x] Marketing Page - 3-legged token not generated if 2-legged token is already in context.
[x] Right error message on getting ad accounts and user org roles function failure.
[x] 3-legged OAuth Response population on success.
[x] 2-legged OAuth Response population on success.
[x] Can’t reset from 2-legged OAuth
[x] Refresh token with 2 legged token
[x] Rename publicly exposed endpoints to follow camel casing.
[x] Renamed Refresh token button to Use refresh token for clarity(Use refresh token to generate new access token flow)
[x] Removed HttpSession and storing token in runtime memory for use.
[x] Renamed Marketing UI page as marketing (lower case URL path)
[x] Fixed property loading in 2-legged OAuth which was not accounted earlier.

linkedin-developers / java-sample-application