From what I've read, symptoms of Avoidant Personality Disorder have many of the same social problems, but the cause and effect are reversed; APD folks tend to steer away from social interaction because they're depressed/feel unworthy. AS types probably feel depressed because they suck at socializing. In the end, what you have is two groups of people who don't socialize and are probably depressed.
But there's nothing about APD that suggests they're hyperfocused, or inattentive, or repetitive in behavior, hypersensitive, etc. and other AS traits