[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/cli/src/main/java/org/onosproject/cli/CliComponent.java b/cli/src/main/java/org/onosproject/cli/CliComponent.java
index 2c44578..558abda 100644
--- a/cli/src/main/java/org/onosproject/cli/CliComponent.java
+++ b/cli/src/main/java/org/onosproject/cli/CliComponent.java
@@ -15,10 +15,10 @@
  */
 package org.onosproject.cli;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.CoreService;
 
 /**
@@ -28,7 +28,7 @@
 @Component(immediate = true)
 public class CliComponent {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     @Activate