diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonPropertyInfoOfT.cs b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonPropertyInfoOfT.cs
index de34a5bb0b7fd5..40941d2c53f04b 100644
--- a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonPropertyInfoOfT.cs
+++ b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonPropertyInfoOfT.cs
@@ -46,12 +46,12 @@ private protected override void SetGetter(Delegate? getter)
             else if (getter is Func<object, T> typedGetter)
             {
                 _typedGet = typedGetter;
-                _untypedGet = getter is Func<object, object?> untypedGet ? untypedGet : obj => typedGetter(obj);
+                _untypedGet = getter is Func<object, object?> untypedGet ? untypedGet : obj => _typedGet(obj);
             }
             else
             {
                 Func<object, object?> untypedGet = (Func<object, object?>)getter;
-                _typedGet = (obj => (T)untypedGet(obj)!);
+                _typedGet = (obj => (T)_untypedGet!(obj)!);
                 _untypedGet = untypedGet;
             }
         }
@@ -69,12 +69,12 @@ private protected override void SetSetter(Delegate? setter)
             else if (setter is Action<object, T> typedSetter)
             {
                 _typedSet = typedSetter;
-                _untypedSet = setter is Action<object, object?> untypedSet ? untypedSet : (obj, value) => typedSetter(obj, (T)value!);
+                _untypedSet = setter is Action<object, object?> untypedSet ? untypedSet : (obj, value) => _typedSet(obj, (T)value!);
             }
             else
             {
                 Action<object, object?> untypedSet = (Action<object, object?>)setter;
-                _typedSet = ((obj, value) => untypedSet(obj, value));
+                _typedSet = ((obj, value) => _untypedSet!(obj, value));
                 _untypedSet = untypedSet;
             }
         }
@@ -100,12 +100,12 @@ private protected override void SetShouldSerialize(Delegate? predicate)
             else if (predicate is Func<object, T?, bool> typedPredicate)
             {
                 _shouldSerializeTyped = typedPredicate;
-                _shouldSerialize = typedPredicate is Func<object, object?, bool> untypedPredicate ? untypedPredicate : (obj, value) => typedPredicate(obj, (T?)value);
+                _shouldSerialize = typedPredicate is Func<object, object?, bool> untypedPredicate ? untypedPredicate : (obj, value) => _shouldSerializeTyped(obj, (T?)value);
             }
             else
             {
                 Func<object, object?, bool> untypedPredicate = (Func<object, object?, bool>)predicate;
-                _shouldSerializeTyped = (obj, value) => untypedPredicate(obj, value);
+                _shouldSerializeTyped = (obj, value) => _shouldSerialize!(obj, value);
                 _shouldSerialize = untypedPredicate;
             }
         }
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..ad5f2b3e4ffe16 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
@@ -86,13 +86,13 @@ private protected override void SetCreateObject(Delegate? createObject)
             else if (createObject is Func<T> typedDelegate)
             {
                 typedCreateObject = typedDelegate;
-                untypedCreateObject = createObject is Func<object> untypedDelegate ? untypedDelegate : () => typedDelegate()!;
+                untypedCreateObject = createObject is Func<object> untypedDelegate ? untypedDelegate : () => _typedCreateObject!()!;
             }
             else
             {
                 Debug.Assert(createObject is Func<object>);
                 untypedCreateObject = (Func<object>)createObject;
-                typedCreateObject = () => (T)untypedCreateObject();
+                typedCreateObject = () => (T)_createObject!();
             }
 
             _createObject = untypedCreateObject;