@Override
  public String toString() {
    StringBuilder sb = new StringBuilder("[PlusCode: ");
    sb.append(globalCode);
    if (compoundCode != null) {
      sb.append(", compoundCode=").append(compoundCode);
    }
    sb.append("]");
    return sb.toString();
  }
The compound Plus Code identifier. May be null for locations in remote areas.
src/main/java/com/google/maps/model/PlusCode.java