Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/topology/Device.java b/src/main/java/net/onrc/onos/core/topology/Device.java
index 25a27be..48035b3 100644
--- a/src/main/java/net/onrc/onos/core/topology/Device.java
+++ b/src/main/java/net/onrc/onos/core/topology/Device.java
@@ -7,12 +7,11 @@
 
 /**
  * Interface of Device Object exposed to the "NB" read-only Topology.
- *
+ * <p/>
  * TODO What a Device Object represent is unclear at the moment.
- *
+ * <p/>
  * Everything returned by these interfaces must be either Unmodifiable view,
  * immutable object, or a copy of the original "SB" In-memory Topology.
- *
  */
 public interface Device {
     /**
@@ -31,7 +30,7 @@
 
     /**
      * Get the device attachment points.
-     *
+     * <p/>
      * Add requirement for Iteration order? Latest observed port first.
      *
      * @return the device attachment points.
@@ -40,7 +39,7 @@
 
     /**
      * Get the device last seen time.
-     *
+     * <p/>
      * TODO: what is the time definition?
      *
      * @return the device last seen time.