code: public static void setWsLogger(Class<?> clazz) {
          try {
              Class<?>[] classParams = { String.class, Class.class, String.class };
              wsLogger = clazz == null ? null : clazz.getConstructor(classParams);
          } catch (NoSuchMethodException e) {
              throw new RuntimeException(e);
          }
      }
docs: Called by TrLoggerHelper#setTrLogger. The WsLogger class is part of the
  logging jar/bundle: when the LogProvider is initialized, a callback is made
  to provide the Logger class that should be used for constructed Logger instancs.
  
  @param clazz