RR: keep q parameter visible in HttpHeaders.getAcceptableMediaTypes; still preserve order on ties

Author: geoand

independent-projects/resteasy-reactive/common/runtime/src/main/java/org/jboss/resteasy/reactive/common/headers/HeaderUtil.java

@@ -288,23 +288,9 @@ public static List<MediaType> getAcceptableMediaTypes(MultivaluedMap<String, ? e
             }
         }
         // Sort by weight (q) while preserving header-provided order on total ties
+        // Keep the q parameter present for visibility (TCK expects it), but do not
+        // rely on it downstream for matching; matching logic uses MediaTypeHelper.
         MediaTypeHelper.sortByWeight(list);
-
-        // The returned acceptable media types must not include the quality factor parameter ("q").
-        // Strip any present "q" from the parameters while keeping other parameters (e.g., charset).
-        for (int i = 0; i < list.size(); i++) {
-            MediaType mt = list.get(i);
-            Map<String, String> params = mt.getParameters();
-            if (params != null && params.containsKey("q")) {
-                if (params.size() == 1) {
-                    list.set(i, new MediaType(mt.getType(), mt.getSubtype()));
-                } else {
-                    Map<String, String> copy = new java.util.LinkedHashMap<>(params);
-                    copy.remove("q");
-                    list.set(i, new MediaType(mt.getType(), mt.getSubtype(), copy));
-                }
-            }
-        }
         return list;
     }