Fix unit test

src/test/java/org/sdnplatform/sync/internal/store/RemoteStoreTest.java

@@ -4,6 +4,8 @@ import java.util.ArrayList;
 import java.util.List;
 
 import net.floodlightcontroller.core.module.FloodlightModuleContext;
+import net.floodlightcontroller.debugcounter.IDebugCounterService;
+import net.floodlightcontroller.debugcounter.NullDebugCounter;
 import net.floodlightcontroller.threadpool.IThreadPoolService;
 import net.floodlightcontroller.threadpool.ThreadPool;
 
@@ -30,6 +32,7 @@ public class RemoteStoreTest extends AbstractStoreT<ByteArray,byte[]> {
         tp = new ThreadPool();
 
         fmc.addService(IThreadPoolService.class, tp);
+        fmc.addService(IDebugCounterService.class, new NullDebugCounter());
         syncManager = new SyncManager();
         syncManager.registerStore("local", Scope.LOCAL);