1 files changed, 3 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/dictionarypack/MetadataDbHelper.java b/java/src/com/android/inputmethod/dictionarypack/MetadataDbHelper.java
index a2789cc1a..fbc899192 100644
--- a/java/src/com/android/inputmethod/dictionarypack/MetadataDbHelper.java
+++ b/java/src/com/android/inputmethod/dictionarypack/MetadataDbHelper.java
@@ -34,6 +34,8 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.TreeMap;
 
+import javax.annotation.Nullable;
+
 /**
  * Various helper functions for the state database
  */
@@ -705,6 +707,7 @@ public class MetadataDbHelper extends SQLiteOpenHelper {
      * @param version the word list version.
      * @return the metadata about this word list.
      */
+    @Nullable
     public static ContentValues getContentValuesByWordListId(final SQLiteDatabase db,
             final String id, final int version) {
         final Cursor cursor = db.query(METADATA_TABLE_NAME,