Right now I'm just trying to establish a connection between my java app and Salesforce, but it isn't working out very well.  For some reason on my connection = new PartnerConnection(config); line I always error.

[ApiFault  exceptionCode='INVALID_LOGIN' exceptionMessage='Invalid username, password, security token; or user locked out.'

I have already confirmed that my username/password/security token are all correct.

public static void main(String[] args)  {   

ConnectorConfig config = new ConnectorConfig();   

config.setUsername("MYLOGIN");   

config.setPassword("MYPW&MYTOKEN");       

PartnerConnection connection;

try    {        

connection = Connector.newConnection(config);  

 } catch (ConnectionException e)    {     

// TODO Auto-generated catch block      e.printStackTrace();    }   }