This is a cultivar of English oak (Quercus robur). They are fairly insect and disease resistant. The spots could be due to insect feeding or possibly from a non-important fungal disease. Or they could be frost damage. A late frost can kill a few cells in the bud or in newly formed leaves. Those small areas then make spots or curled areas when the leaf gets bigger. Regardless, these are not serious problems. You tree will be ok. If the problem gets worse or comes back next year, contact me again.