Binary evolutionary channels which lead to mergers with properties of J-stars from re-accretion of nova-ejecta followed by COAL and CE mergers or HBB in AGB-phases of GB-MS (Case-B RLOF) mergers. The different stellar evolutionary phases are marked (with colours) as – blue: MS star, red: giant-envelope/CE, golden: He-core/WD, black: CO-core/WD, orange: nova-polluted star (MS/HG).