[image_picker][android] suppress unchecked warning (#4408)

diff --git a/packages/image_picker/image_picker/CHANGELOG.md b/packages/image_picker/image_picker/CHANGELOG.md
index 4c89be1..90829cc 100644
--- a/packages/image_picker/image_picker/CHANGELOG.md
+++ b/packages/image_picker/image_picker/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.8.4+3
+
+* Suppress a unchecked cast build warning.
+
 ## 0.8.4+2
 
 * Update minimum Flutter SDK to 2.5 and iOS deployment target to 9.0.
diff --git a/packages/image_picker/image_picker/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java b/packages/image_picker/image_picker/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java
index a60c1f1..dddf67e 100644
--- a/packages/image_picker/image_picker/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java
+++ b/packages/image_picker/image_picker/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java
@@ -217,6 +217,7 @@
 
   void retrieveLostImage(MethodChannel.Result result) {
     Map<String, Object> resultMap = cache.getCacheMap();
+    @SuppressWarnings("unchecked")
     ArrayList<String> pathList = (ArrayList<String>) resultMap.get(cache.MAP_KEY_PATH_LIST);
     ArrayList<String> newPathList = new ArrayList<>();
     if (pathList != null) {
diff --git a/packages/image_picker/image_picker/pubspec.yaml b/packages/image_picker/image_picker/pubspec.yaml
index ba5ce66..9976670 100755
--- a/packages/image_picker/image_picker/pubspec.yaml
+++ b/packages/image_picker/image_picker/pubspec.yaml
@@ -3,7 +3,7 @@
   library, and taking new pictures with the camera.
 repository: https://github.com/flutter/plugins/tree/master/packages/image_picker/image_picker
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+image_picker%22
-version: 0.8.4+2
+version: 0.8.4+3
 
 environment:
   sdk: ">=2.14.0 <3.0.0"