docs: public static Map<String, String> getRegisterdSASLMechanisms() {
          Map<String, String> answer = new LinkedHashMap<>();
          synchronized (REGISTERED_MECHANISMS) {
              for (SASLMechanism mechanism : REGISTERED_MECHANISMS) {
                  answer.put(mechanism.getClass().getName(), mechanism.toString());
              }
          }
          return answer;
      }