diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/TestApplication.java b/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/TestApplication.java
index dece9a45cfd6f..bcf94909cefa3 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/TestApplication.java
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/TestApplication.java
@@ -16,7 +16,7 @@
 
 package com.android.multidexlegacyandexception;
 
-import android.support.multidex.MultiDexApplication;
+import androidx.multidex.MultiDexApplication;
 
 public class TestApplication extends MultiDexApplication {
 
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/tests/MultiDexAndroidJUnitRunner.java b/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/tests/MultiDexAndroidJUnitRunner.java
index 758ac1dcb4a05..92a3b0c0f7c30 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/tests/MultiDexAndroidJUnitRunner.java
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyAndException/src/com/android/multidexlegacyandexception/tests/MultiDexAndroidJUnitRunner.java
@@ -17,7 +17,7 @@
 package com.android.multidexlegacyandexception.tests;
 
 import android.os.Bundle;
-import android.support.multidex.MultiDex;
+import androidx.multidex.MultiDex;
 import android.support.test.runner.AndroidJUnitRunner;
 
 public class MultiDexAndroidJUnitRunner extends AndroidJUnitRunner {
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyTestApp/src/com/android/multidexlegacytestapp/TestApplication.java b/core/tests/hosttests/test-apps/MultiDexLegacyTestApp/src/com/android/multidexlegacytestapp/TestApplication.java
index c52ad292b6de4..f89d132596185 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyTestApp/src/com/android/multidexlegacytestapp/TestApplication.java
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyTestApp/src/com/android/multidexlegacytestapp/TestApplication.java
@@ -16,7 +16,7 @@
 
 package com.android.multidexlegacytestapp;
 
-import android.support.multidex.MultiDexApplication;
+import androidx.multidex.MultiDexApplication;
 
 import java.lang.annotation.Annotation;
 
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests2/src/com/android/multidexlegacytestapp/test2/MultiDexAndroidJUnitRunner.java b/core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests2/src/com/android/multidexlegacytestapp/test2/MultiDexAndroidJUnitRunner.java
index 963f90432dd76..9e41a925de894 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests2/src/com/android/multidexlegacytestapp/test2/MultiDexAndroidJUnitRunner.java
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests2/src/com/android/multidexlegacytestapp/test2/MultiDexAndroidJUnitRunner.java
@@ -1,7 +1,7 @@
 package com.android.multidexlegacytestapp.test2;
 
 import android.os.Bundle;
-import android.support.multidex.MultiDex;
+import androidx.multidex.MultiDex;
 import android.support.test.runner.AndroidJUnitRunner;
 
 public class MultiDexAndroidJUnitRunner extends AndroidJUnitRunner {
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyTestAppWithCorruptedDex/AndroidManifest.xml b/core/tests/hosttests/test-apps/MultiDexLegacyTestAppWithCorruptedDex/AndroidManifest.xml
index 7993c6f48f836..5f006fe59a63e 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyTestAppWithCorruptedDex/AndroidManifest.xml
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyTestAppWithCorruptedDex/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:targetSdkVersion="18" />
 
     <application
-        android:name="android.support.multidex.MultiDexApplication"
+        android:name="androidx.multidex.MultiDexApplication"
         android:allowBackup="true"
         android:label="MultiDexLegacyTestApp_corrupted">
         <activity
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyTestServices/src/com/android/framework/multidexlegacytestservices/AbstractService.java b/core/tests/hosttests/test-apps/MultiDexLegacyTestServices/src/com/android/framework/multidexlegacytestservices/AbstractService.java
index cb0a591559db1..bbb494425901f 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyTestServices/src/com/android/framework/multidexlegacytestservices/AbstractService.java
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyTestServices/src/com/android/framework/multidexlegacytestservices/AbstractService.java
@@ -20,7 +20,7 @@ import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
 import android.os.IBinder;
-import android.support.multidex.MultiDex;
+import androidx.multidex.MultiDex;
 import android.util.Log;
 
 import java.io.File;
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v1/AndroidManifest.xml b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v1/AndroidManifest.xml
index c7b066d15b8a6..f3f11b99e19da 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v1/AndroidManifest.xml
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v1/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:targetSdkVersion="18" />
 
     <application
-        android:name="android.support.multidex.MultiDexApplication"
+        android:name="androidx.multidex.MultiDexApplication"
         android:allowBackup="true"
         android:label="MultiDexLegacyVersionedTestApp_v1">
         <activity
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v2/AndroidManifest.xml b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v2/AndroidManifest.xml
index 4d247931f5470..e43e56b24654b 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v2/AndroidManifest.xml
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v2/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:targetSdkVersion="18" />
 
     <application
-        android:name="android.support.multidex.MultiDexApplication"
+        android:name="androidx.multidex.MultiDexApplication"
         android:allowBackup="true"
         android:label="MultiDexLegacyVersionedTestApp_v2">
         <activity
diff --git a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v3/AndroidManifest.xml b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v3/AndroidManifest.xml
index 76c92dd05ca54..1d9722887998f 100644
--- a/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v3/AndroidManifest.xml
+++ b/core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v3/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:targetSdkVersion="18" />
 
     <application
-        android:name="android.support.multidex.MultiDexApplication"
+        android:name="androidx.multidex.MultiDexApplication"
         android:allowBackup="true"
         android:label="MultiDexLegacyVersionedTestApp_v3">
         <activity