public String getPasswordAsString() {
            return new String(password, StandardCharsets.UTF_8);
        }
Username and password container, can be used with try-with-resources to overwrite in-memory password,
as per best practices. But, most places just use a plain string, so it's probably not going to make
much of a difference!
common/es/src/main/java/io/apiman/common/es/util/ApimanEsClientOptionsParser.java