diff --git a/api/current.txt b/api/current.txt
index b6baea9748787..917936bfb9fb1 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -42764,7 +42764,7 @@ package android.telephony {
     method @Deprecated public int getCdmaDbm();
     method @Deprecated public int getCdmaEcio();
     method @NonNull public java.util.List<android.telephony.CellSignalStrength> getCellSignalStrengths();
-    method public <T extends android.telephony.CellSignalStrength> java.util.List<T> getCellSignalStrengths(@NonNull Class<T>);
+    method @NonNull public <T extends android.telephony.CellSignalStrength> java.util.List<T> getCellSignalStrengths(@NonNull Class<T>);
     method @Deprecated public int getEvdoDbm();
     method @Deprecated public int getEvdoEcio();
     method @Deprecated public int getEvdoSnr();
diff --git a/telephony/java/android/telephony/SignalStrength.java b/telephony/java/android/telephony/SignalStrength.java
index d461bd0fee8a2..cab23747dd396 100644
--- a/telephony/java/android/telephony/SignalStrength.java
+++ b/telephony/java/android/telephony/SignalStrength.java
@@ -214,7 +214,7 @@ public class SignalStrength implements Parcelable {
      * @see android.telephony#CellSignalStrengthCdma
      * @see android.telephony#CellSignalStrengthGsm
      */
-    public @NonNull List<CellSignalStrength> getCellSignalStrengths() {
+    @NonNull public List<CellSignalStrength> getCellSignalStrengths() {
         return getCellSignalStrengths(CellSignalStrength.class);
     }
 
@@ -240,7 +240,7 @@ public class SignalStrength implements Parcelable {
      * @see android.telephony#CellSignalStrengthCdma
      * @see android.telephony#CellSignalStrengthGsm
      */
-    public <T extends CellSignalStrength> @NonNull List<T> getCellSignalStrengths(
+    @NonNull public <T extends CellSignalStrength> List<T> getCellSignalStrengths(
             @NonNull Class<T> clazz) {
         List<T> cssList = new ArrayList<>(2); // Usually have 2 or fewer elems
         if (mLte.isValid() && clazz.isAssignableFrom(CellSignalStrengthLte.class)) {