comments addressed

Author: Fred1155

.changes/next-release/bugfix-AWSQueryProtocol-1398d13.json

@@ -2,5 +2,5 @@
     "type": "bugfix",
     "category": "AWS Query Protocol",
     "contributor": "",
-    "description": "Fixed the bug that EC2 DescribeInstances query uses locale-dependent formatting"
+    "description": "Fixed EC2 DescribeInstances query failure in non-ASCII digit locales by using ROOT locale when formatting query paths to ensure ASCII digits are always used."
 }

core/protocols/aws-query-protocol/src/main/java/software/amazon/awssdk/protocols/query/internal/marshall/ListQueryMarshaller.java

@@ -30,10 +30,9 @@
 public class ListQueryMarshaller implements QueryMarshaller<List<?>> {
     private static final PathResolver AWS_QUERY_PATH_RESOLVER = (path, i, listTrait) ->
         listTrait.isFlattened() ?
-        String.format("%s.%d", path, i + 1) :
-        String.format("%s.%s.%d", path, listTrait.memberFieldInfo().locationName(), i + 1);
-    private static final PathResolver EC2_QUERY_PATH_RESOLVER = (path, i, listTrait) -> String.format(Locale.ROOT, "%s.%d", path
-        , i + 1);
+        path + "." + (i + 1) :
+        path + "." + listTrait.memberFieldInfo().locationName() + "." + (i + 1);
+    private static final PathResolver EC2_QUERY_PATH_RESOLVER = (path, i, listTrait) -> path + "." + (i + 1);
 
     private static final EmptyListMarshaller AWS_QUERY_EMPTY_LIST_MARSHALLER =
         (context, path) -> context.request().putRawQueryParameter(path, "");

core/protocols/aws-query-protocol/src/main/java/software/amazon/awssdk/protocols/query/internal/marshall/MapQueryMarshaller.java

@@ -46,7 +46,7 @@ public void marshall(QueryMarshallerContext context, String path, Map<String, ?>
 
     private static String resolveMapPath(String path, MapTrait mapTrait, AtomicInteger entryNum, String s) {
         return mapTrait.isFlattened() ?
-               String.format("%s.%d.%s", path, entryNum.get(), s) :
-               String.format("%s.entry.%d.%s", path, entryNum.get(), s);
+               path + "." + entryNum.get() + "." + s :
+               path + ".entry." + entryNum.get() + "." + s;
     }
 }