Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/topology/Port.java b/src/main/java/net/onrc/onos/core/topology/Port.java
index e9f6bb8..216d4b8 100644
--- a/src/main/java/net/onrc/onos/core/topology/Port.java
+++ b/src/main/java/net/onrc/onos/core/topology/Port.java
@@ -1,24 +1,26 @@
 package net.onrc.onos.core.topology;
 
 
-
 /**
  * Interface of Port Object exposed to the "NB" read-only Topology.
- *
+ * <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 Port {
-	public Long getDpid();
-	public Long getNumber();
-	public Long getHardwareAddress();
-	public String getDescription();
+    public Long getDpid();
 
-	public Switch getSwitch();
+    public Long getNumber();
 
-	public Link getOutgoingLink();
-	public Link getIncomingLink();
+    public Long getHardwareAddress();
 
-	public Iterable<Device> getDevices();
+    public String getDescription();
+
+    public Switch getSwitch();
+
+    public Link getOutgoingLink();
+
+    public Link getIncomingLink();
+
+    public Iterable<Device> getDevices();
 }