diff --git a/dependencymanager/test/src/main/java/org/apache/felix/dm/test/bundle/annotation/multiple/ServiceProvider2.java b/dependencymanager/test/src/main/java/org/apache/felix/dm/test/bundle/annotation/multiple/ServiceProvider2.java
index 4c68aa3..add7df3 100644
--- a/dependencymanager/test/src/main/java/org/apache/felix/dm/test/bundle/annotation/multiple/ServiceProvider2.java
+++ b/dependencymanager/test/src/main/java/org/apache/felix/dm/test/bundle/annotation/multiple/ServiceProvider2.java
@@ -31,7 +31,7 @@
     Composite m_composite = new Composite();
     Sequencer m_sequencer;
 
-    @ServiceDependency(required = false, filter = "(foo=bar)")
+    @ServiceDependency(required = false, filter = "(foo=bar)") // NullObject
     Runnable m_runnable;
 
     @ServiceDependency(service = Sequencer.class)
@@ -45,9 +45,13 @@
     void start()
     {
         m_sequencer.step(3);
-        m_runnable.run();
+        m_runnable.run(); // NullObject
     }
 
+    public void step(int step) { // called by ServiceProvider.start() method
+        m_sequencer.step(step);
+    }
+    
     @Stop
     void stop()
     {