Java / JSON Interview Question

gistfile1.java

// Find as many errors as possible with this method

/**
 * Is the specified user an admin?
 */
public Boolean isUserAdmin(final JSONObject userJson) {
  final String userType = userJson.getString("user_type");
  if (userType.equals("admin")) {
    return true;
  } else {
    return false;
  }
}