GenericCollectionTypeResolver，用于获取list或者map等元素的类型GenericCollectionTypeResolver，用于获取
GenericCollectionTypeResolver，用于获取list或者map等元素的类型
GenericCollectionTypeResolver，用于获取list或者map等元素的类型。如
Class requiredType = GenericCollectionTypeResolver.getCollectionReturnType(
pd.getReadMethod(), tokens.keys.length);
还有一个是GenericTypeResolver