diff --git a/telephony/java/android/telephony/AvailableNetworkInfo.java b/telephony/java/android/telephony/AvailableNetworkInfo.java
index fe07370394ad3..4da79b34a55ed 100644
--- a/telephony/java/android/telephony/AvailableNetworkInfo.java
+++ b/telephony/java/android/telephony/AvailableNetworkInfo.java
@@ -110,6 +110,7 @@ public final class AvailableNetworkInfo implements Parcelable {
     private AvailableNetworkInfo(Parcel in) {
         mSubId = in.readInt();
         mPriority = in.readInt();
+        mMccMncs = new ArrayList<>();
         in.readStringList(mMccMncs);
     }
 
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 865f461f39058..5dc8db32f4a23 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -9615,7 +9615,7 @@ public class TelephonyManager {
         boolean ret = false;
         try {
             IOns iOpportunisticNetworkService = getIOns();
-            if (iOpportunisticNetworkService != null) {
+            if (iOpportunisticNetworkService != null && availableNetworks != null) {
                 ret = iOpportunisticNetworkService.updateAvailableNetworks(availableNetworks,
                         pkgForDebug);
             }