Strange resoult in dao Jboss as 7.1 Thunder

[lukasw44]

hello

i have got strange problem with one my function and i dont know what is wrong : /

i use standard spring mvc app and i this is my function :

@SuppressWarnings("unchecked")
    @Override
    @Transactional(readOnly=true )
    public List<TAboutAs> getFromRange(int minIndex, int maxIndex)
    {
        
        System.out.println("MIN INDEX :" + minIndex + " MAX INDEX : " + maxIndex);
    
        Query query = entityManager.createQuery("SELECT n FROM " +TAboutAs.class.getSimpleName() + " n");
        query.setFirstResult(minIndex); 
        query.setMaxResults(maxIndex);
        
        return query.getResultList();
    }

And i have got problem because if minIndex is 0 and maxIndex is 5 i have got 5 resoults but if indexMin is 5 and indexMax is 10 i have got 10 resoults and when minIndex is 10 and maxIndex is 15 i have got 12 resoults , and minIndex 15 maxindex 20 7 resoults ??

It is a bug ??  I use this function in my controller here is :

@Autowired
    private IAboutAsDAO aboutAsDAO;
    
    @RequestMapping(IAdminConsoleActionURL.GET_ALL_ABOUT_AS_CLIPBOARD+"*")
    public @ResponseBody JsonView loadAllAboutAsClipboard(@RequestParam(value="start", defaultValue="0") int start,
                @RequestParam(value="limit",defaultValue="5") int limit,
                @RequestParam(value="page", defaultValue="1") int page
            )
    {
        int stop = page * MAX_RESULTS;
    
        
        
        
        JsonView jView = new JsonView();
        jView.setSuccess(true);
        System.out.println("GET ALL JSONN start: "  + start + "stop : " + stop);
    
        
        
        List<TAboutAs> listAboutAs = null;
        listAboutAs = aboutAsDAO.getFromRange(start, stop);
        
        System.out.println("Size : " + listAboutAs.size());
        
        jView.addStaticAttribute("total", aboutAsDAO.countAll());
        jView.addStaticAttribute("data", listAboutAs);
            
        
        return jView;
    }

And everything is fine but not not resoults ?? i wrote the same function in Jboss 4 and everything is fine

pls give me adwice or help