I managed to print results on client side. I use alerts to chek.
The list is received as it is, we have a method that will fill the grid 
with that list but somethiing is stopping it. It still print a loading 
spinner that never stops. 
The same code works well with gwt 2.4/gxt 2.2.5.
Now we are using gwt 2.8/gxt 2.2.5

Le lundi 10 octobre 2022 à 21:04:58 UTC+2, system out a écrit :

> I migtated gwt app from 2.4 to 2.8
> After fixing build erros the app launches and interfaces are appearing.
> We have a excel file upload.
> When I click upload it is stuck on loading. A loading text appears and 
> result never shows up.
> There a method that takes data imported from excel and put fill some 
> objects with it.
> The data is well imported. The method that fill objects with it will 
> return the filled objects as a List. When I return an empty list it works.
> Do you know if there's something that should be changed due to the 
> migration?
>
>

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