I apologize, but there is no such class as "JsonLocation" in the Apache Commons IO library. It seems that you might be confusing it with the class JsonLocation from the Jackson library, which provides information about the location of a JSON event (such as the beginning or end of an object or array) within a JSON document.

Here is an example of using the JsonLocation class from the Jackson library:

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.JsonLocation;

public class JsonLocationExample {
    public static void main(String[] args) throws IOException {
        JsonFactory jsonFactory = new JsonFactory();
        JsonParser jsonParser = jsonFactory.createParser("{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}");

        while (jsonParser.nextToken() != null) {
            JsonLocation location = jsonParser.getCurrentLocation();
            System.out.println("Token: " + jsonParser.getCurrentToken() + " at " + location.toString());
        }
    }
}

In this example, we first create a JsonFactory object, which we use to create a JsonParser for the input JSON string. We then use a while loop to iterate over the tokens in the JSON, where jsonParser.nextToken() returns the next token in the JSON and jsonParser.getCurrentToken() returns the current token.

We then use the jsonParser.getCurrentLocation() method to get the current location of the token. This will give you the line, column and character offset of the token.

This example will output:

Token: START_OBJECT at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 1]
Token: FIELD_NAME at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 2]
Token: VALUE_STRING at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 11]
Token: FIELD_NAME at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 21]
Token: VALUE_NUMBER_INT at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 25]
Token: FIELD_NAME at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 30]
Token: VALUE_TRUE at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,\"isEmployed\":true}"; line: 1, column: 40]
Token: END_OBJECT at [Source: (String)"{\"name\":\"John Doe\",\"age\":30,