docs: public static void configure(String xmlConfig, File voltroot) {
          try {
              Class<?> loggerClz = Class.forName("org.voltcore.logging.VoltLog4jLogger");
              assert(loggerClz != null);
              Method configureMethod = loggerClz.getMethod("configure", String.class, File.class);
              configureMethod.invoke(null, xmlConfig, voltroot);
          } catch (Exception e) {}
      }