if mclass.name == "Char" then return "jchar"
if mclass.name == "Int" then return "jlong"
if mclass.name == "Float" then return "jdouble"
if mclass.name == "Char" then return "jchar"
if mclass.name == "Int" then return "jlong"
if mclass.name == "Float" then return "jdouble"