class SessionData {

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((id == null) ? 0 : id.hashCode());
    result = prime * result + (int)(originalLastAccessed ^ (originalLastAccessed >>> 32));
    return result;
  }

  public  SessionData(String id, long lastAccessedTime, int maxInactiveInterval, long creationTime,
      String previousOwner);
  public  SessionData(String sessionId, long creationTime, int maxInactiveInterval);

}