Update

src/MOI/MOI_wrapper.jl

@@ -3073,21 +3073,20 @@ function _has_primal_ray(model::Optimizer)
     return has_Ray[] != 0
 end
 
-const _SOLSTATUS_MAP = Dict(
-    Lib.XPRS_SOLSTATUS_NOTFOUND => MOI.NO_SOLUTION,
-    Lib.XPRS_SOLSTATUS_OPTIMAL => MOI.FEASIBLE_POINT,
-    Lib.XPRS_SOLSTATUS_FEASIBLE => MOI.FEASIBLE_POINT,
-    Lib.XPRS_SOLSTATUS_INFEASIBLE => MOI.NO_SOLUTION,
-    Lib.XPRS_SOLSTATUS_UNBOUNDED => MOI.NO_SOLUTION,
-)
-
 function _cache_primal_status(model)
-    stat =
-        @_invoke Lib.XPRSgetintattrib(model.inner, Lib.XPRS_SOLSTATUS, _)::Int
-    if stat == Lib.XPRS_SOLSTATUS_UNBOUNDED && _has_primal_ray(model)
+    if _has_primal_ray(model)
         return MOI.INFEASIBILITY_CERTIFICATE
     end
-    return _SOLSTATUS_MAP[stat]
+    dict, attr = if is_mip(model)
+        _MIPSTATUS, Lib.XPRS_MIPSTATUS
+    else
+        _LPSTATUS, Lib.XPRS_LPSTATUS
+    end
+    stat = @_invoke Lib.XPRSgetintattrib(model.inner, attr, _)::Int
+    if dict[stat][2] in (MOI.OPTIMAL, MOI.LOCALLY_SOLVED)
+        return MOI.FEASIBLE_POINT
+    end
+    return MOI.NO_SOLUTION
 end
 
 function MOI.get(model::Optimizer, attr::MOI.PrimalStatus)

test/test_MOI_wrapper.jl

@@ -1046,6 +1046,9 @@ end
 
 function test_dummy_nlp()
     model = Xpress.Optimizer(; OUTPUTLOG = 0)
+    if Xpress.get_version() < v"41.0.0"
+        return
+    end
     x = MOI.add_variables(model, 2)
     c = [1.0, 2.0]
     MOI.set(