1 files changed, 3 insertions, 1 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/PolylineContainer.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/PolylineContainer.java
index 303b25fb55..ed0ceceb1f 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/PolylineContainer.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/PolylineContainer.java
@@ -36,6 +36,7 @@ class PolylineContainer implements Polylines {
     return polyline;
   }
 
+  @NonNull
   @Override
   public List<Polyline> addBy(@NonNull List<PolylineOptions> polylineOptionsList, @NonNull MapboxMap mapboxMap) {
     int count = polylineOptionsList.size();
@@ -61,11 +62,12 @@ class PolylineContainer implements Polylines {
   }
 
   @Override
-  public void update(Polyline polyline) {
+  public void update(@NonNull Polyline polyline) {
     nativeMapView.updatePolyline(polyline);
     annotations.setValueAt(annotations.indexOfKey(polyline.getId()), polyline);
   }
 
+  @NonNull
   @Override
   public List<Polyline> obtainAll() {
     List<Polyline> polylines = new ArrayList<>();