Load Json files and convert that into java object using libraries

MockDataUtils.java

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.io.IOUtils;

import com.google.common.collect.ImmutableList;
import com.google.common.io.Resources;
import com.google.common.reflect.TypeToken;
import com.google.gson.Gson;

public class MockDataUtil {

 public static ImmutableList getEmployees() throws IOException {
  //Resources from Guava library
  InputStream inputStream = Resources.getResource("employees.json").openStream();
  String jsonData = IOUtils.toString(inputStream, "UTF-8");

  java.lang.reflect.Type listType = new TypeToken {
   private static final long serialVersionUID = -2769410970603534670 L;
  }.getType();

  List employees = new Gson().fromJson(jsonData, listType);
  return ImmutableList.copyOf(employees);

 }

}