Fix StrictModeTest#testNonSdkApiUsage

Test: atest android.os.cts.StrictModeTest#testNonSdkApiUsage
Bug: 131923046
Bug: 129892635

Merged-In: I6759339000eb239112c0c83ce1131f34164ee0cf
Change-Id: I6759339000eb239112c0c83ce1131f34164ee0cf
diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index de963c9..fe2e948 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
 import android.text.TextUtils;
 import android.util.ArrayMap;
@@ -2001,6 +2002,7 @@
      * @hide
      */
     @UnsupportedAppUsage
+    @TestApi
     public final int readExceptionCode() {
         int code = readInt();
         if (code == EX_HAS_REPLY_HEADER) {