code: public void notifyError( URL resource, String message )
      {
          synchronized( m_Monitors )
          {
              for( StreamMonitor monitor : m_Monitors )
              {
                  monitor.notifyError( resource, message );
              }
          }
      }
docs: Notify the monitor of the an error during the download
  process.
  
  @param resource the name of the remote resource.
  @param message  a non-localized message describing the problem in english.