| newref(r1, st), validrefvalnotnull(str, val, ty1, st) ⊦ r1 = jvmref, is_referencevalue(val) ∧ validrefnotnull(str, val .refval, ty1, addobj(r1, class, fis, st)) |
⊦ validrefvalnotnull(str, val, ty, st) ↔ is_referencevalue(val) ∧ validrefnotnull(str, val .refval, ty, st)
⊦ newref(r1, st) ∧ validrefnotnull(str, r, ty1, st) → validrefnotnull(str, r, ty1, addobj(r1, class, fis, st))
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty1, val, str)]]