protected SprogSlot findFree(){
  for (  SprogSlot s : slots) {
    if (s.isFree()) {
      if (log.isDebugEnabled()) {
        log.debug("Found free slot " + s.getSlotNumber());
      }
      return s;
    }
  }
  return (null);
}

protected SprogSlot findFree ( ) { for ( SprogSlot s : slots ) { if ( s . isFree ( ) ) { if ( log . isDebugEnabled ( ) ) { log . debug ( "Found free slot " + s . getSlotNumber ( ) ) ; } return s ; } } return ( null ) ; }
find a free slot entry .
