diff --git a/src/main/java/org/dataone/indexer/storage/HashStorage.java b/src/main/java/org/dataone/indexer/storage/HashStorage.java
index 2bf632f0..0aaf2771 100644
--- a/src/main/java/org/dataone/indexer/storage/HashStorage.java
+++ b/src/main/java/org/dataone/indexer/storage/HashStorage.java
@@ -73,14 +73,20 @@ public static HashStorage getInstance(String className) throws IOException {
     public InputStream retrieveObject(String pid)
             throws IllegalArgumentException, FileNotFoundException, IOException,
             NoSuchAlgorithmException {
-        return hashStorage.retrieveObject(pid);
+        return hashStore.retrieveObject(pid);
     }
 
     @Override
     public InputStream retrieveSystemMetadata(String pid)
             throws IllegalArgumentException, FileNotFoundException, IOException,
             NoSuchAlgorithmException {
-        return hashStorage.retrieveSystemMetadata(pid);
+        return hashStore.retrieveMetadata(pid);
+    }
+
+    @Override
+    public void storeObject(InputStream object, String pid) throws NoSuchAlgorithmException,
+                                               IOException,RuntimeException, InterruptedException {
+        hashStore.storeObject(object, pid, null, null, null, -1);
     }
 
 }
diff --git a/src/main/java/org/dataone/indexer/storage/Storage.java b/src/main/java/org/dataone/indexer/storage/Storage.java
index e138d976..bfe5077b 100644
--- a/src/main/java/org/dataone/indexer/storage/Storage.java
+++ b/src/main/java/org/dataone/indexer/storage/Storage.java
@@ -5,6 +5,8 @@
 import java.io.InputStream;
 import java.security.NoSuchAlgorithmException;
 
+import org.dataone.hashstore.exceptions.PidRefsFileExistsException;
+
 
 /**
  * The Storage represents the interface to access the objects and system metadata
@@ -38,4 +40,16 @@ public InputStream retrieveObject(String pid) throws IllegalArgumentException,
     public InputStream retrieveSystemMetadata(String pid) throws IllegalArgumentException,
                             FileNotFoundException, IOException, NoSuchAlgorithmException;
 
+    /**
+     * Store the input stream object into hash store. This method is only for the test classes.
+     * @param object  the input stream of the object
+     * @param pid  the pid which will be stored
+     * @throws NoSuchAlgorithmException
+     * @throws IOException
+     * @throws RuntimeException
+     * @throws InterruptedException
+     */
+    public void storeObject(InputStream object, String pid) throws NoSuchAlgorithmException,
+                                                IOException,RuntimeException, InterruptedException;
+
 }