Unfortunately, I could not find any class called "JsonAlias" in the Apache Commons IO library. Apache Commons IO provides a collection of IO utilities that can be used to perform common file and stream operations, but it does not have a class specifically for working with JSON.

If you're looking for a library to work with JSON in Java, you might consider using Gson or Jackson, which are both widely used for parsing and generating JSON data.

Here is an example of how you can use the Gson library to parse a JSON string and convert it to a Java object:

String json = "{\"name\":\"John\",\"age\":30,\"city\":\"New York\"}";
Gson gson = new Gson();
Person person = gson.fromJson(json, Person.class);

and here is an example of how you can use the Jackson library to parse a JSON string and convert it to a Java object:

String json = "{\"name\":\"John\",\"age\":30,\"city\":\"New York\"}";
ObjectMapper mapper = new ObjectMapper();
Person person = mapper.readValue(json, Person.class);

Keep in mind that you need to have the Gson or Jackson library in your classpath in order to use these examples.