I am doing Laserfiche related development using JRA. I have no any further training using JRA. Before doing development, I am testing the JRA sample application to become familiar with the subject. In the "EntryLinkSample.java". Following are the code used to do repository connection and user log in.:

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String serverName = "serverName", repoName = "repoName", userName = "userName ", password = "password";

int port = 80;
Session session = new Session();
RepositoryRegistration repository = new RepositoryRegistration(serverName, repoName, port);

session.connect(repository);
session.logIn(userName, password);

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I replaced with correct credential and test. The repository connection was successful, but user log in failed with error message of "user/password not match".

According to Laserfiche document, JRA may needs JRA kerberos security configuration set up.

However, after I have the kerberos security configured and changed the code according to document, the user login still failed with different messages like: "Client not found in Kerberos database (6) or Message stream modified (41) .

1) Is it necessary to use Kerberos security configuration to do user login in JRA ?

2) If not, why the statement session.logIn(userName, password) failed?

3) If yes, why does the user login still failed with kerberos configuration?

4) What is the correct way to do user login using JRA?

Thanks