Merge "Use Empty List for Default PhysicalChannelConfig" into pi-dev

services/core/java/com/android/server/TelephonyRegistry.java

@@ -351,7 +351,7 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
             mCallForwarding[i] =  false;
             mCellLocation[i] = new Bundle();
             mCellInfo.add(i, null);
-            mPhysicalChannelConfigs.add(i, null);
+            mPhysicalChannelConfigs.add(i, new ArrayList<PhysicalChannelConfig>());
         }
 
         // Note that location can be null for non-phone builds like

telephony/java/android/telephony/PhoneStateListener.java

@@ -16,6 +16,7 @@
 
 package android.telephony;
 
+import android.annotation.NonNull;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -578,7 +579,8 @@ public class PhoneStateListener {
      * @param configs List of the current {@link PhysicalChannelConfig}s
      * @hide
      */
-    public void onPhysicalChannelConfigurationChanged(List<PhysicalChannelConfig> configs) {
+    public void onPhysicalChannelConfigurationChanged(
+            @NonNull List<PhysicalChannelConfig> configs) {
         // default implementation empty
     }