According Pie docs: https://developer.android.com/about/versions/pie/android-9.0-changes-28#apache-p
"With Android 6.0, we removed support for the Apache HTTP client. Beginning with Android 9, that library is removed from the bootclasspath and is not available to apps by default.
To continue using the Apache HTTP client, apps that target Android 9 and above can add the following to their AndroidManifest.xml:
<uses-library android:name="org.apache.http.legacy" android:required="false"/>"

But even on version 16.0.0, the library doesn't have <uses-library...> line in his manifest, causing an app crash when open a screen with Google Maps if this line isn't in app manifest.

java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/ProtocolVersion;
at el.b(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):3)
at ek.a(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):4)
at em.a(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):51)
at com.google.maps.api.android.lib6.drd.ap.a(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):11)
at dw.a(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):16)
at dw.run(:com.google.android.gms.dynamite_mapsdynamite@12862026@12.8.62 (040700-199405334):61)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.ProtocolVersion" on path: DexPathList[[zip file "/system/priv-app/PrebuiltGmsCore/app_chimera/m/MapsDynamite.apk"],nativeLibraryDirectories=[/data/user_de/0/com.google.android.gms/app_chimera/m/00000006/MapsDynamite.apk!/lib/x86, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at ad.loadClass(:com.google.android.gms.dynamite_dynamiteloader@12862026@12.8.62 (040700-199405334):25)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

What steps will reproduce the problem?
1. Create a project with maps api
2. Set targetApi and compileSdkVersion to 28 in build.gradle
3. Don't add <uses-library> line on app manifest
4. Try to open an Activity with Google Maps fragment

- Device (and version of Android) you have verified this issue on: Android emulator with Android 9.0
- Google Play Services client library version: 16.0.0
- Google Play Services version on the device: 12.8.62
- Android SDK Version: 28
- Was this working correctly on a previous version of Google Play Services? No