I reckon people who buy SUN hardware will never-ever run their app on GAE for too many reason. I do agree however there is nothing wrong in omitting core class

I reckon people who buy SUN hardware will never-ever run their app on GAE for too many reason. I do agree however there is nothing wrong in omitting core classes, I think SUN started it with idea of lightweight client java a while ago :) And such an initiative should really have come from SUN many years ago, giving java developers cheap hosting.