diff --git a/core/api/current.txt b/core/api/current.txt
index 22d1c3aa090fc..2d1b8a3ab4216 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -32282,7 +32282,7 @@ package android.os {
     method @Deprecated public void readMap(@NonNull java.util.Map, @Nullable ClassLoader);
     method public <K, V> void readMap(@NonNull java.util.Map<? super K,? super V>, @Nullable ClassLoader, @NonNull Class<K>, @NonNull Class<V>);
     method @Deprecated @Nullable public <T extends android.os.Parcelable> T readParcelable(@Nullable ClassLoader);
-    method @Nullable public <T> T readParcelable(@Nullable ClassLoader, @NonNull Class<T>);
+    method @Nullable public <T extends android.os.Parcelable> T readParcelable(@Nullable ClassLoader, @NonNull Class<? super T>);
     method @Deprecated @Nullable public android.os.Parcelable[] readParcelableArray(@Nullable ClassLoader);
     method @Nullable public <T> T[] readParcelableArray(@Nullable ClassLoader, @NonNull Class<T>);
     method @Deprecated @Nullable public android.os.Parcelable.Creator<?> readParcelableCreator(@Nullable ClassLoader);
@@ -32292,7 +32292,7 @@ package android.os {
     method @Nullable public android.os.PersistableBundle readPersistableBundle();
     method @Nullable public android.os.PersistableBundle readPersistableBundle(@Nullable ClassLoader);
     method @Deprecated @Nullable public java.io.Serializable readSerializable();
-    method @Nullable public <T> T readSerializable(@Nullable ClassLoader, @NonNull Class<T>);
+    method @Nullable public <T extends java.io.Serializable> T readSerializable(@Nullable ClassLoader, @NonNull Class<? super T>);
     method @NonNull public android.util.Size readSize();
     method @NonNull public android.util.SizeF readSizeF();
     method @Deprecated @Nullable public <T> android.util.SparseArray<T> readSparseArray(@Nullable ClassLoader);
diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index 3bc3ec83bde52..e8b3ae9499fb5 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -3711,10 +3711,10 @@ public final class Parcel {
         final int m = list.size();
         int i = 0;
         for (; i < m && i < n; i++) {
-            list.set(i, (T) readParcelableInternal(cl, clazz));
+            list.set(i, readParcelableInternal(cl, clazz));
         }
         for (; i < n; i++) {
-            list.add((T) readParcelableInternal(cl, clazz));
+            list.add(readParcelableInternal(cl, clazz));
         }
         for (; i < m; i++) {
             list.remove(n);
@@ -4217,7 +4217,8 @@ public final class Parcel {
      * trying to instantiate an element.
      */
     @Nullable
-    public <T> T readParcelable(@Nullable ClassLoader loader, @NonNull Class<T> clazz) {
+    public <T extends Parcelable> T readParcelable(@Nullable ClassLoader loader,
+            @NonNull Class<? super T> clazz) {
         Objects.requireNonNull(clazz);
         return readParcelableInternal(loader, clazz);
     }
@@ -4227,7 +4228,8 @@ public final class Parcel {
      */
     @SuppressWarnings("unchecked")
     @Nullable
-    private <T> T readParcelableInternal(@Nullable ClassLoader loader, @Nullable Class<T> clazz) {
+    private <T extends Parcelable> T readParcelableInternal(@Nullable ClassLoader loader,
+            @Nullable Class<? super T> clazz) {
         Parcelable.Creator<?> creator = readParcelableCreatorInternal(loader, clazz);
         if (creator == null) {
             return null;
@@ -4463,7 +4465,8 @@ public final class Parcel {
      * deserializing the object.
      */
     @Nullable
-    public <T> T readSerializable(@Nullable ClassLoader loader, @NonNull Class<T> clazz) {
+    public <T extends Serializable> T readSerializable(@Nullable ClassLoader loader,
+            @NonNull Class<? super T> clazz) {
         Objects.requireNonNull(clazz);
         return readSerializableInternal(
                 loader == null ? getClass().getClassLoader() : loader, clazz);
@@ -4473,8 +4476,8 @@ public final class Parcel {
      * @param clazz The type of the serializable expected or {@code null} for performing no checks
      */
     @Nullable
-    private <T> T readSerializableInternal(@Nullable final ClassLoader loader,
-            @Nullable Class<T> clazz) {
+    private <T extends Serializable> T readSerializableInternal(@Nullable final ClassLoader loader,
+            @Nullable Class<? super T> clazz) {
         String name = readString();
         if (name == null) {
             // For some reason we were unable to read the name of the Serializable (either there