diff --git a/tests/cts/net/Android.mk b/tests/cts/net/Android.mk
index bb1f4c7..2084dbc 100644
--- a/tests/cts/net/Android.mk
+++ b/tests/cts/net/Android.mk
@@ -40,8 +40,8 @@
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
     core-tests-support \
-    compatibility-device-util \
-    ctstestrunner \
+    compatibility-device-util-axt \
+    ctstestrunner-axt \
     ctstestserver \
     mockwebserver \
     junit \
diff --git a/tests/cts/net/AndroidManifest.xml b/tests/cts/net/AndroidManifest.xml
index 2a57c10..630de7e 100644
--- a/tests/cts/net/AndroidManifest.xml
+++ b/tests/cts/net/AndroidManifest.xml
@@ -43,7 +43,7 @@
         </receiver>
     </application>
 
-    <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
                      android:targetPackage="android.net.cts"
                      android:label="CTS tests of android.net">
         <meta-data android:name="listener"
diff --git a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
index 01a7951..5077f55 100644
--- a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
+++ b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
@@ -24,6 +24,7 @@
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
 import static android.provider.Settings.Global.NETWORK_METERED_MULTIPATH_PREFERENCE;
+
 import static com.android.compatibility.common.util.SystemUtil.runShellCommand;
 
 import android.app.Instrumentation;
@@ -50,41 +51,39 @@
 import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.provider.Settings;
-import android.support.test.InstrumentationRegistry;
 import android.system.Os;
 import android.system.OsConstants;
 import android.test.AndroidTestCase;
 import android.text.TextUtils;
 import android.util.Log;
 
+import androidx.test.InstrumentationRegistry;
+
 import com.android.compatibility.common.util.SystemUtil;
 import com.android.internal.R;
 import com.android.internal.telephony.PhoneConstants;
 
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.InputStream;
+import libcore.io.Streams;
+
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
-import java.lang.NumberFormatException;
 import java.net.HttpURLConnection;
 import java.net.Inet6Address;
 import java.net.InetAddress;
-import java.net.Socket;
 import java.net.InetSocketAddress;
+import java.net.Socket;
 import java.net.URL;
 import java.net.UnknownHostException;
 import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.HashMap;
-import java.util.Scanner;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import libcore.io.Streams;
 
 public class ConnectivityManagerTest extends AndroidTestCase {
 
diff --git a/tests/cts/net/src/android/net/cts/MacAddressTest.java b/tests/cts/net/src/android/net/cts/MacAddressTest.java
index ace1cde..af1e760 100644
--- a/tests/cts/net/src/android/net/cts/MacAddressTest.java
+++ b/tests/cts/net/src/android/net/cts/MacAddressTest.java
@@ -19,11 +19,13 @@
 import static android.net.MacAddress.TYPE_BROADCAST;
 import static android.net.MacAddress.TYPE_MULTICAST;
 import static android.net.MacAddress.TYPE_UNICAST;
+
 import static org.junit.Assert.fail;
 
 import android.net.MacAddress;
-import android.support.test.filters.SmallTest;
-import android.support.test.runner.AndroidJUnit4;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/tests/cts/net/src/android/net/cts/NetworkWatchlistTest.java b/tests/cts/net/src/android/net/cts/NetworkWatchlistTest.java
index e85de2a..e0c03a1 100644
--- a/tests/cts/net/src/android/net/cts/NetworkWatchlistTest.java
+++ b/tests/cts/net/src/android/net/cts/NetworkWatchlistTest.java
@@ -24,9 +24,10 @@
 import android.content.Context;
 import android.net.ConnectivityManager;
 import android.os.FileUtils;
-import android.support.test.filters.SmallTest;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.InstrumentationRegistry;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
 
 import com.android.compatibility.common.util.ApiLevelUtil;
 import com.android.compatibility.common.util.SystemUtil;
@@ -37,7 +38,6 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
-
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java b/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
index d29b9d5..a66fcdb 100644
--- a/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
+++ b/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
@@ -28,7 +28,6 @@
 import android.net.NetworkInfo;
 import android.net.wifi.ScanResult;
 import android.net.wifi.WifiConfiguration;
-import android.net.wifi.WifiConfiguration.Status;
 import android.net.wifi.WifiManager;
 import android.net.wifi.WifiManager.TxPacketCountListener;
 import android.net.wifi.WifiManager.WifiLock;
@@ -38,24 +37,21 @@
 import android.os.Process;
 import android.os.SystemClock;
 import android.provider.Settings;
-import android.support.test.InstrumentationRegistry;
 import android.support.test.uiautomator.UiDevice;
 import android.test.AndroidTestCase;
-import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.Log;
 
+import androidx.test.InstrumentationRegistry;
+
 import com.android.compatibility.common.util.SystemUtil;
-import com.android.compatibility.common.util.WifiConfigCreator;
 
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.security.MessageDigest;
 import java.security.cert.X509Certificate;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
-import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Collectors;