public int hashCode() {
    int result;
    result = (myRootTagLocalName != null ? myRootTagLocalName.hashCode() : 0);
    result = 31 * result + (myRootTagNamespace != null ? myRootTagNamespace.hashCode() : 0);
    result = 31 * result + (myPublicId != null ? myPublicId.hashCode() : 0);
    result = 31 * result + (mySystemId != null ? mySystemId.hashCode() : 0);
    return result;
  }
public int hashCode()