diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfo.cs b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfo.cs
index c6485d6863b18a..724987b6db2881 100644
--- a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfo.cs
+++ b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfo.cs
@@ -102,6 +102,25 @@ public Func<object>? CreateObject
         private protected abstract void SetCreateObject(Delegate? createObject);
         private protected Func<object>? _createObject;
 
+        private protected void AfterCreateObject()
+        {
+            // Clear any data related to the previously specified ctor
+            ConstructorAttributeProviderFactory = null;
+            ConstructorAttributeProvider = null;
+
+            if (CreateObjectWithArgs is not null)
+            {
+                _parameterInfoValuesIndex = null;
+                CreateObjectWithArgs = null;
+                ParameterCount = 0;
+
+                foreach (JsonPropertyInfo propertyInfo in PropertyList)
+                {
+                    propertyInfo.AssociatedParameter = null;
+                }
+            }
+        }
+
         internal Func<object>? CreateObjectForExtensionDataProperty { get; set; }
 
         /// <summary>
diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.cs b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.cs
index 7a00b678d59899..c19c0f73bdd722 100644
--- a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.cs
+++ b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.cs
@@ -98,21 +98,7 @@ private protected override void SetCreateObject(Delegate? createObject)
             _createObject = untypedCreateObject;
             _typedCreateObject = typedCreateObject;
 
-            // Clear any data related to the previously specified ctor
-            ConstructorAttributeProviderFactory = null;
-            ConstructorAttributeProvider = null;
-
-            if (CreateObjectWithArgs is not null)
-            {
-                _parameterInfoValuesIndex = null;
-                CreateObjectWithArgs = null;
-                ParameterCount = 0;
-
-                foreach (JsonPropertyInfo propertyInfo in PropertyList)
-                {
-                    propertyInfo.AssociatedParameter = null;
-                }
-            }
+            AfterCreateObject();
         }
 
         /// <summary>