Why am I getting a “401 Unauthorized” error in Maven?

Question

Why am I getting a \"401 Unauthorized\" error in Maven?

Here\'s the error I\'m getting when calling mvn deploy (full logs at the bottom):

Answer 1

In my case I removed the server logon credentials for central from my setting.

     
        central
        admin 
        ****** 
    

   
        central
        central
        maven-central
        http://www.localhost:8081/repository/maven-central/
    

I don't know why I did that, but its completely wrong since the central maven repo can be accessed anonymously. See my debug output that led to my error identification and resolution.

[DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for http://www.localhost:8081/repository/maven-central/ with username=admin, password=***