Merge "Don't include inaccessible data dirs in library paths." into rvc-qpr-dev

        makePaths(mActivityThread, isBundledApp, mApplicationInfo, zipPaths, libPaths);

        String libraryPermittedPath = mDataDir;

        if (mActivityThread == null) {

            // In a zygote context where mActivityThread is null we can't access the app data dir

            // and including this in libraryPermittedPath would cause SELinux denials.

            libraryPermittedPath = "";

        }

        // Including an inaccessible dir in libraryPermittedPath would cause SELinux denials

        // when the loader attempts to canonicalise the path. so we don't.

        String libraryPermittedPath = canAccessDataDir() ? mDataDir : "";

        if (isBundledApp) {

            // For bundled apps, add the base directory of the app (e.g.,

        }

    }

    /**

     * Return whether we can access the package's private data directory in order to be able to

     * load code from it.

     */

    private boolean canAccessDataDir() {

        // In a zygote context where mActivityThread is null we can't access the app data dir.

        if (mActivityThread == null) {

            return false;

        }

        // A package can access its own data directory (the common case, so short-circuit it).

        if (Objects.equals(mPackageName, ActivityThread.currentPackageName())) {

            return true;

        }

        // Temporarily disable logging of disk reads on the Looper thread as this is necessary -

        // and the loader will access the directory anyway if we don't check it.

        StrictMode.ThreadPolicy oldPolicy = allowThreadDiskReads();

        try {

            // We are constructing a classloader for a different package. It is likely,

            // but not certain, that we can't acccess its app data dir - so check.

            return new File(mDataDir).canExecute();

        } finally {

            setThreadPolicy(oldPolicy);

        }

    }

    @UnsupportedAppUsage

    public ClassLoader getClassLoader() {

        synchronized (this) {