While INTJ’s certainly have some symptoms of Aspergers probably more than many other types, that does not mean they have Aspergers. I would think that many people that have Aspergers are either an INTP or INTJ because people with Aspergers are usually introverted and have trouble dealing and interacting with the outside world. Here are some symptoms of Aspergers that could correlate with INTJ’s:
Lack of emotion
May have trouble in school
Dislike changes in routine
Become overstimulated by loud noises and bright lights
Not all of these are true for all Intj’s, but seem to be common traits among many.