will we have problems upon arrival if we stopover in Dubai?

we are visiting China next month and thought it was a good opportunity to visit Dubai on the way to Shanghai ( we are Italians travelling from Italy) but now I have a doubt,, will we have any problems upon arrival (i.e. will we be denied entry to China) if we visit Dubai (i.e. we will have a UAE stamp on the passport which was not there when I applied for the Chinese visa-nor it was listed in the countries w visited in the last 12 months on the application form)?
thanks for you kind help