Bad news, J&J is a so-called "Viral Vector" vaccine, which is to say they replace a virus' viral genome with DNA that encodes for the spike proteins, which goes to the nucleus and starts making proteins, as opposed to the older "Live Attenuated" and "Inactivated" vaccines, that use faulty or dead virus particles of what you are trying to vaccinate against.
Bad news, J&J is a so-called "Viral Vector" vaccine, which is to say they replace a virus' viral genome with DNA that encodes for the spike proteins, which goes to the nucleus and starts making proteins, as opposed to the older "Live Attenuated" and "Inactivated" vaccines, that use faulty or dead virus particles of what you are trying to vaccinate against.