JAMESBURG — Exactly 150 years after the New Jersey Training School for Boys opened its doors, a rally outside the prison will call for its closure, suggesting youth incarceration in New Jersey has not succeeded at rehabilitating the young minds that go through the system. The June 28 rally, led by the New Jersey Institute for Social Justice, will push for the shutdown of both the Jamesburg facility and the Female Secure Care and Intake Facility in Bordentown. Caravans of supporters — all part of the Youth Justice New Jersey coalition — are expected to attend.