code: public static Class forName(String className, boolean initialize) {
          try {
              return Class.forName(className, initialize, getCurrentClassLoader());
          } catch (Exception e) {
              throw new SofaRpcRuntimeException(e);
          }
      }
docs: 根据类名加载Class
  
  @param className  类名
  @param initialize 是否初始化
  @return Class