OAuth: HTTP 401 Status when trying to get access token to LinkedIn

[GoogleCodeExporter]

What steps will reproduce the problem?
1.OAuth: HTTP 401 Status when trying to get access token to LinkedIn
We made the below reference to develop, but we got http 401 status. 
http://stackoverflow.com/questions/9897528/oauth-http-401-status-when-trying-to-
get-access-token-to-linkedin

What is the expected output? What do you see instead?

2014-09-15 17:08:39,465 [http-28080-exec-87]-ERROR 
(SignupLinkedinAction#processConnect():83) - LinkedInApi Error. oauth_verifier 
:09716
com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceException: 
oauth.signpost.exception.OAuthCommunicationException: Communication with the 
service provider failed: Server returned HTTP response code: 401 for URL: 
https://api.linkedin.com/uas/oauth/accessToken
at 
com.google.code.linkedinapi.client.oauth.LinkedInOAuthServiceImpl.getOAuthAccess
Token(LinkedInOAuthServiceImpl.java:135)

What version of the product are you using? On what operating system?
linkedin-j-1.0.429.jar

Please provide any additional information below.

Original issue reported on code.google.com by ayumu.ka...@bizreach.co.jp on 16 Sep 2014 at 2:00