Fix checkstyle buck daemon issue

- checkstyle buck daemon was not processing a file listed at end of the list.
- fix issues, which hasn't been detected due to above bug
- cosmetic fixes

Change-Id: I15f24311835726757f0974b7e5c12ff1c79a3d4e
diff --git a/apps/vpls/src/test/java/org/onosproject/vpls/VplsManagerTest.java b/apps/vpls/src/test/java/org/onosproject/vpls/VplsManagerTest.java
index 67128db..5583967 100644
--- a/apps/vpls/src/test/java/org/onosproject/vpls/VplsManagerTest.java
+++ b/apps/vpls/src/test/java/org/onosproject/vpls/VplsManagerTest.java
@@ -33,7 +33,7 @@
 import static org.onosproject.vpls.api.VplsData.VplsState.*;
 
 /**
- * Test for {@link VplsManager}
+ * Test for {@link VplsManager}.
  */
 public class VplsManagerTest extends VplsTest {
     private VplsManager vplsManager;