1 files changed, 2 insertions, 0 deletions
diff --git a/android/arch/persistence/room/integration/testapp/vo/PetCouple.java b/android/arch/persistence/room/integration/testapp/vo/PetCouple.java
index f27b1313..e5208ed7 100644
--- a/android/arch/persistence/room/integration/testapp/vo/PetCouple.java
+++ b/android/arch/persistence/room/integration/testapp/vo/PetCouple.java
@@ -20,11 +20,13 @@ import android.arch.persistence.room.Embedded;
 import android.arch.persistence.room.Entity;
 import android.arch.persistence.room.PrimaryKey;
 import android.arch.persistence.room.RoomWarnings;
+import android.support.annotation.NonNull;
 
 @Entity
 @SuppressWarnings(RoomWarnings.PRIMARY_KEY_FROM_EMBEDDED_IS_DROPPED)
 public class PetCouple {
     @PrimaryKey
+    @NonNull
     public String id;
     @Embedded(prefix = "male_")
     public Pet male;