first print out your request token like this :
System.out.println("REQUEST TOKEN -------> " + requestToken);
requestToken should be like this [axaxaxaxaxaxax, bcbcbcbcbcbcbc] ;
copy axaxaxaxaxxa and paste it:
www.linkedin.com/oauth/authorize?oauth_token=HERE ,
than your browser will print a url with a &oauth_verifier=xxxxxxxxxxxx copy xxxxxx and paste in your eclipse java project ...