in log4j-jakarta-smtp/src/main/java/org/apache/logging/log4j/smtp/appender/SmtpManager.java [425:438]
private Authenticator buildAuthenticator(final String username, final String password) {
if (null != password && null != username) {
return new Authenticator() {
private final PasswordAuthentication passwordAuthentication =
new PasswordAuthentication(username, password);
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return passwordAuthentication;
}
};
}
return null;
}