The court decided that several of the youngsters were guilty of exploiting a child for use in sexual imagery, reported SVT’s Värmland news programme.
The boy thought he was chatting with a girl called Sara and gamely agreed to disrobe before his web camera. Unfortunately, he was instead chatting to a group of his schoolmates.
The matter was handed over to the police by the school after the boy reported the prank to the principal.
Three 18-year-old were given a suspended sentence and 50-day fines, while their younger friends were sentenced to community service.