Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java b/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java
index b659be7..4d77f76 100644
--- a/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java
+++ b/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java
@@ -6,38 +6,41 @@
 import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
-/***
+/**
  * Topology Switch event history related classes and members
- * @author subrata
  *
+ * @author subrata
  */
 public class EventHistoryTopologySwitch {
     // The following fields are not stored as String to save memory
     // They should be converted to appropriate human-readable strings by 
     // the front end (e.g. in cli in Python)
-    public long     dpid;
-    public int  ipv4Addr;
-    public int    l4Port;
-    public String   reason;
-    
+    public long dpid;
+    public int ipv4Addr;
+    public int l4Port;
+    public String reason;
+
     @JsonProperty("Switch")
-    @JsonSerialize(using=DPIDSerializer.class)
+    @JsonSerialize(using = DPIDSerializer.class)
     public long getDpid() {
         return dpid;
     }
+
     @JsonProperty("IpAddr")
-    @JsonSerialize(using=IPv4Serializer.class)
+    @JsonSerialize(using = IPv4Serializer.class)
     public int getIpv4Addr() {
         return ipv4Addr;
     }
+
     @JsonProperty("Port")
     public int getL4Port() {
         return l4Port;
     }
+
     @JsonProperty("Reason")
     public String getReason() {
         return reason;
     }
-    
-    
+
+
 }