diff --git a/sdk/lib/_internal/wasm/lib/compact_hash.dart b/sdk/lib/_internal/wasm/lib/compact_hash.dart
index bd78968e58d..931d4781da2 100644
--- a/sdk/lib/_internal/wasm/lib/compact_hash.dart
+++ b/sdk/lib/_internal/wasm/lib/compact_hash.dart
@@ -4,6 +4,7 @@
 
 import "dart:_internal"
     show IterableElementError, ClassID, TypeTest, unsafeCast;
+import "dart:_list" show GrowableList;
 import "dart:_wasm";
 
 import "dart:collection";
@@ -443,7 +444,7 @@ mixin _LinkedHashMapMixin<K, V> on _HashBase, _EqualsAndHashCode {
   /// This function is unsafe: it does not perform any type checking on
   /// keys and values assuming that caller has ensured that types are
   /// correct.
-  void _populateUnsafe(List<Object?> keyValuePairs) {
+  void _populateUnsafe(GrowableList<Object?> keyValuePairs) {
     assert(keyValuePairs.length.isEven);
     int size = _roundUpToPowerOfTwo(keyValuePairs.length);
     if (size < _HashBase._INITIAL_INDEX_SIZE) {
@@ -1130,5 +1131,6 @@ base class CompactLinkedCustomHashSet<E> extends _HashFieldBase
 }
 
 @pragma('wasm:prefer-inline')
-Map<K, V> createMapFromKeyValueListUnsafe<K, V>(List<Object?> keyValuePairs) =>
+Map<K, V> createMapFromKeyValueListUnsafe<K, V>(
+        GrowableList<Object?> keyValuePairs) =>
     DefaultMap<K, V>().._populateUnsafe(keyValuePairs);
diff --git a/sdk/lib/_internal/wasm/lib/convert_patch.dart b/sdk/lib/_internal/wasm/lib/convert_patch.dart
index 30a4079f1ab..ef1a2403b06 100644
--- a/sdk/lib/_internal/wasm/lib/convert_patch.dart
+++ b/sdk/lib/_internal/wasm/lib/convert_patch.dart
@@ -6,10 +6,11 @@ import "dart:_compact_hash" show createMapFromKeyValueListUnsafe;
 import "dart:_internal" show patch, POWERS_OF_TEN, unsafeCast;
 import "dart:_js_string_convert";
 import "dart:_js_types";
+import "dart:_list" show GrowableList;
 import "dart:_string";
 import "dart:_typed_data";
 import "dart:_wasm";
-import "dart:typed_data" show Uint8List, Uint16List;
+import "dart:typed_data" show Uint8List;
 
 /// This patch library has no additional parts.
 
@@ -87,7 +88,7 @@ class _JsonListener {
   *
   * When building [Map] this will contain array of key-value pairs.
   */
-  List<dynamic>? currentContainer;
+  GrowableList<dynamic>? currentContainer;
 
   /** The most recently read value. */
   Object? value;
@@ -95,13 +96,13 @@ class _JsonListener {
   /** Pushes the currently active container. */
   void beginContainer() {
     stack.add(currentContainer);
-    currentContainer = [];
+    currentContainer = GrowableList.empty();
   }
 
   /** Pops the top container from the [stack]. */
   void popContainer() {
     value = currentContainer;
-    currentContainer = unsafeCast<List?>(stack.removeLast());
+    currentContainer = unsafeCast<GrowableList?>(stack.removeLast());
   }
 
   void handleString(String value) {
@@ -125,12 +126,12 @@ class _JsonListener {
   }
 
   void propertyName() {
-    unsafeCast<List>(currentContainer).add(value);
+    unsafeCast<GrowableList>(currentContainer).add(value);
     value = null;
   }
 
   void propertyValue() {
-    final keyValuePairs = unsafeCast<List>(currentContainer);
+    final keyValuePairs = unsafeCast<GrowableList>(currentContainer);
     if (reviver case final reviver?) {
       final key = keyValuePairs.last;
       keyValuePairs.add(reviver(key, value));
@@ -143,7 +144,7 @@ class _JsonListener {
   void endObject() {
     popContainer();
     value = createMapFromKeyValueListUnsafe<String, dynamic>(
-        unsafeCast<List>(value));
+        unsafeCast<GrowableList>(value));
   }
 
   void beginArray() {