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Commit 715e4176 authored by Hani Kazmi's avatar Hani Kazmi Committed by Automerger Merge Worker
Browse files

Merge "Parcel.java: Fix bug where non-nested creators threw NullPointer" am: 97211945 

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2139755



Change-Id: I0c74786d36b73d8c7812750dac5b6af55fb96ff9
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 45cad6c4 97211945

core/java/android/os/Parcel.java

+32 −17
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ import android.util.ArraySet; 
import android.util.ExceptionUtils;

import android.util.Log;

import android.util.MathUtils;

import android.util.Pair;

import android.util.Size;

import android.util.SizeF;

import android.util.Slog;
@@ -4865,28 +4866,36 @@ public final class Parcel { 
        if (name == null) {

            return null;

        }

        Parcelable.Creator<?> creator;

        HashMap<String, Parcelable.Creator<?>> map;

        synchronized (mCreators) {

            map = mCreators.get(loader);



        Pair<Parcelable.Creator<?>, Class<?>> creatorAndParcelableClass;

        synchronized (sPairedCreators) {

            HashMap<String, Pair<Parcelable.Creator<?>, Class<?>>> map =

                    sPairedCreators.get(loader);

            if (map == null) {

                map = new HashMap<>();

                mCreators.put(loader, map);

                sPairedCreators.put(loader, new HashMap<>());

                mCreators.put(loader, new HashMap<>());

                creatorAndParcelableClass = null;

            } else {

                creatorAndParcelableClass = map.get(name);

            }

            creator = map.get(name);

        }

        if (creator != null) {



        if (creatorAndParcelableClass != null) {

            Parcelable.Creator<?> creator = creatorAndParcelableClass.first;

            Class<?> parcelableClass = creatorAndParcelableClass.second;

            if (clazz != null) {

                Class<?> parcelableClass = creator.getClass().getEnclosingClass();

                if (!clazz.isAssignableFrom(parcelableClass)) {

                    throw new BadTypeParcelableException("Parcelable creator " + name + " is not "

                            + "a subclass of required class " + clazz.getName()

                            + " provided in the parameter");

                }

            }



            return (Parcelable.Creator<T>) creator;

        }



        Parcelable.Creator<?> creator;

        Class<?> parcelableClass;

        try {

            // If loader == null, explicitly emulate Class.forName(String) "caller

            // classloader" behavior.
@@ -4894,7 +4903,7 @@ public final class Parcel { 
                    (loader == null ? getClass().getClassLoader() : loader);

            // Avoid initializing the Parcelable class until we know it implements

            // Parcelable and has the necessary CREATOR field. http://b/1171613.

            Class<?> parcelableClass = Class.forName(name, false /* initialize */,

            parcelableClass = Class.forName(name, false /* initialize */,

                    parcelableClassLoader);

            if (!Parcelable.class.isAssignableFrom(parcelableClass)) {

                throw new BadParcelableException("Parcelable protocol requires subclassing "
@@ -4941,8 +4950,9 @@ public final class Parcel { 
                    + "CREATOR on class " + name);

        }



        synchronized (mCreators) {

            map.put(name, creator);

        synchronized (sPairedCreators) {

            sPairedCreators.get(loader).put(name, Pair.create(creator, parcelableClass));

            mCreators.get(loader).put(name, creator);

        }



        return (Parcelable.Creator<T>) creator;
@@ -5093,13 +5103,18 @@ public final class Parcel { 
        }

    }



    // Cache of previously looked up CREATOR.createFromParcel() methods for

    // particular classes.  Keys are the names of the classes, values are

    // Method objects.



    // Left due to the UnsupportedAppUsage. Do not use anymore - use sPairedCreators instead

    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)

    private static final HashMap<ClassLoader, HashMap<String, Parcelable.Creator<?>>>

            mCreators = new HashMap<>();



    // Cache of previously looked up CREATOR.createFromParcel() methods for particular classes.

    // Keys are the names of the classes, values are a pair consisting of a parcelable creator,

    // and the class of the parcelable type for the object.

    private static final HashMap<ClassLoader, HashMap<String,

            Pair<Parcelable.Creator<?>, Class<?>>>> sPairedCreators = new HashMap<>();



    /** @hide for internal use only. */

    static protected final Parcel obtain(int obj) {

        throw new UnsupportedOperationException();