docs: private static Class checkClass(String packageName, TypeElement type, Map<String, String> mappedUniName,
              boolean isUniName) {
          String simpleName = getProxyClassName(type.name(), mappedUniName, isUniName);
          String className = packageName + PACKAGE_SPLIT_CHAR + simpleName;
  
          Class<?> c = null;
          try {
              c = Class.forName(className);
          } catch (ClassNotFoundException e1) {
              // if class not found so should generate a new java source class.
              c = null;
          }
  
          return c;
      }