KnowlegeAgentConfiguration should support a username and password property for HTTP authentication when the changset.xml itself is retrieved from HTTP (or shouldn't contain the username/password).

        KnowledgeAgentConfiguration conf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
        Authenticator.setDefault(new Authenticator() { // =========================== BAD - Does NOT work when there are multiple agents with different usernames
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("admin", "admin".toCharArray());
            }
        });
        KnowledgeAgent ka = KnowledgeAgentFactory.newKnowledgeAgent("test", conf);

        KnowledgeAgentConfiguration conf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
        conf.setUsername("admin"); // Or via setProperty()
        conf.setPasword("admin".toCharArray()); // Or via setProperty()
        KnowledgeAgent ka = KnowledgeAgentFactory.newKnowledgeAgent("test", conf);