/*
   * (non-Javadoc)
   *
   * @see org.apache.mina.common.IoFilterAdapter#sessionClosed(org.apache.mina.common.IoFilter.NextFilter,
   *      org.apache.mina.common.IoSession)
   */
  @Override
  public void sessionClosed(NextFilter nextFilter, IoSession session) throws Exception {
    for (ControlProvider provider : providers) provider.sessionClosed(session);

    nextFilter.sessionClosed(session);
  }