in src/main/java/org/apache/sling/testing/teleporter/client/TeleporterHttpClient.java [113:119]
public void setConnectionCredentials(URLConnection c) {
if(credentials != null && !credentials.isEmpty()) {
final String basicAuth = "Basic " + encodeBase64(credentials);
c.setRequestProperty ("Authorization", basicAuth);
log.debug("Credentials set");
}
}