openrtb-core/src/main/java/com/google/openrtb/json/OpenRtbJsonUtils.java
public static String getCurrentName(JsonParser par) throws IOException {
    String name = par.getCurrentName();
    return name == null ? "" : name;
  }
public static String getCurrentName(JsonParser par) throws IOException {
    String name = par.getCurrentName();
    return name == null ? "" : name;
  }
Returns the current field name, or empty string if none.