diff --git a/app/src/main/java/fr/free/nrw/commons/upload/ExistingFileAsync.java b/app/src/main/java/fr/free/nrw/commons/upload/ExistingFileAsync.java
index 5c42c18b1..4f2a39e2a 100644
--- a/app/src/main/java/fr/free/nrw/commons/upload/ExistingFileAsync.java
+++ b/app/src/main/java/fr/free/nrw/commons/upload/ExistingFileAsync.java
@@ -51,7 +51,7 @@ public class ExistingFileAsync extends AsyncTask<Void, Void, Boolean> {
         }
 
         ArrayList<ApiResult> resultNodes = result.getNodes("/api/query/allimages/");
-        boolean fileExists = !resultNodes.isEmpty();
+        boolean fileExists = resultNodes!=null;
         Log.d(TAG, "File already exists in Commons:" + fileExists);
 
         return fileExists;
diff --git a/app/src/main/java/fr/free/nrw/commons/upload/ShareActivity.java b/app/src/main/java/fr/free/nrw/commons/upload/ShareActivity.java
index bd2d4e868..d4d7c2021 100644
--- a/app/src/main/java/fr/free/nrw/commons/upload/ShareActivity.java
+++ b/app/src/main/java/fr/free/nrw/commons/upload/ShareActivity.java
@@ -247,6 +247,7 @@ public  class       ShareActivity
                 InputStream inputStream = getContentResolver().openInputStream(mediaUri);
                 Log.d(TAG, "Input stream created from " + mediaUriString);
                 String fileSHA1 = Utils.getSHA1(inputStream);
+                Log.d(TAG, "File SHA1 is: " + fileSHA1);
 
                 //FIXME: Replace hardcoded string with call to Commons API instead (use TitleCategories.java as template)