diff --git a/core/java/android/net/NetworkAgent.java b/core/java/android/net/NetworkAgent.java
index e9bcefe..31d7d08 100644
--- a/core/java/android/net/NetworkAgent.java
+++ b/core/java/android/net/NetworkAgent.java
@@ -812,7 +812,7 @@
      *        this is the destination the probes are being redirected to, otherwise {@code null}.
      */
     public void onValidationStatus(@ValidationStatus int status, @Nullable Uri redirectUri) {
-        networkStatus(status, redirectUri.toString());
+        networkStatus(status, null == redirectUri ? "" : redirectUri.toString());
     }
     /** @hide TODO delete once subclasses have moved to onValidationStatus */
     protected void networkStatus(int status, String redirectUrl) {
diff --git a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
index 12d80fc..3f8261d 100644
--- a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
+++ b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
@@ -875,6 +875,11 @@
         } catch (IllegalArgumentException e) { }
     }
 
+    private class TestTransportInfo implements TransportInfo {
+        TestTransportInfo() {
+        }
+    }
+
     @Test @IgnoreUpTo(Build.VERSION_CODES.Q)
     public void testBuilder() {
         final int ownerUid = 1001;
@@ -882,6 +887,7 @@
         final int requestUid = 10100;
         final int[] administratorUids = {ownerUid, 10001};
         final TelephonyNetworkSpecifier specifier = new TelephonyNetworkSpecifier(1);
+        final TestTransportInfo transportInfo = new TestTransportInfo();
         final String ssid = "TEST_SSID";
         final String packageName = "com.google.test.networkcapabilities";
         final NetworkCapabilities nc = new NetworkCapabilities.Builder()
@@ -896,7 +902,7 @@
                 .setLinkDownstreamBandwidthKbps(512)
                 .setLinkUpstreamBandwidthKbps(128)
                 .setNetworkSpecifier(specifier)
-                .setTransportInfo(null)
+                .setTransportInfo(transportInfo)
                 .setSignalStrength(signalStrength)
                 .setSsid(ssid)
                 .setRequestorUid(requestUid)
@@ -913,7 +919,7 @@
         assertEquals(128, nc.getLinkUpstreamBandwidthKbps());
         assertNotEquals(512, nc.getLinkUpstreamBandwidthKbps());
         assertEquals(specifier, nc.getNetworkSpecifier());
-        assertNull(nc.getTransportInfo());
+        assertEquals(transportInfo, nc.getTransportInfo());
         assertEquals(signalStrength, nc.getSignalStrength());
         assertNotEquals(-50, nc.getSignalStrength());
         assertEquals(ssid, nc.getSsid());
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index d6fda6b..b864e37 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -205,6 +205,7 @@
 import android.provider.Settings;
 import android.security.KeyStore;
 import android.system.Os;
+import android.telephony.TelephonyManager;
 import android.test.mock.MockContentResolver;
 import android.text.TextUtils;
 import android.util.ArraySet;
@@ -349,6 +350,7 @@
     @Mock IBinder mIBinder;
     @Mock LocationManager mLocationManager;
     @Mock AppOpsManager mAppOpsManager;
+    @Mock TelephonyManager mTelephonyManager;
 
     private ArgumentCaptor<ResolverParamsParcel> mResolverParamsParcelCaptor =
             ArgumentCaptor.forClass(ResolverParamsParcel.class);
@@ -435,6 +437,7 @@
             if (Context.ALARM_SERVICE.equals(name)) return mAlarmManager;
             if (Context.LOCATION_SERVICE.equals(name)) return mLocationManager;
             if (Context.APP_OPS_SERVICE.equals(name)) return mAppOpsManager;
+            if (Context.TELEPHONY_SERVICE.equals(name)) return mTelephonyManager;
             return super.getSystemService(name);
         }