diff --git a/src/main/java/net/onrc/onos/core/topology/SwitchEvent.java b/src/main/java/net/onrc/onos/core/topology/SwitchEvent.java
index b36eba2..7ed65d8 100644
--- a/src/main/java/net/onrc/onos/core/topology/SwitchEvent.java
+++ b/src/main/java/net/onrc/onos/core/topology/SwitchEvent.java
@@ -4,9 +4,8 @@
 
 /**
  * Self-contained Switch Object
- *
+ * <p/>
  * TODO: We probably want common base class/interface for Self-Contained Event Object
- *
  */
 public class SwitchEvent {
     protected final Long dpid;
@@ -16,36 +15,36 @@
      */
     @Deprecated
     public SwitchEvent() {
-	dpid = null;
+        dpid = null;
     }
 
     public SwitchEvent(Long dpid) {
-	this.dpid = dpid;
+        this.dpid = dpid;
     }
 
     public Long getDpid() {
-	return dpid;
+        return dpid;
     }
 
     @Override
     public String toString() {
-	return "[SwitchEvent 0x" + Long.toHexString(dpid) + "]";
+        return "[SwitchEvent 0x" + Long.toHexString(dpid) + "]";
     }
 
     public static final int SWITCHID_BYTES = 2 + 8;
 
     public static ByteBuffer getSwitchID(Long dpid) {
-	if (dpid == null) {
-	    throw new IllegalArgumentException("dpid cannot be null");
-	}
-	return (ByteBuffer) ByteBuffer.allocate(SwitchEvent.SWITCHID_BYTES).putChar('S').putLong(dpid).flip();
+        if (dpid == null) {
+            throw new IllegalArgumentException("dpid cannot be null");
+        }
+        return (ByteBuffer) ByteBuffer.allocate(SwitchEvent.SWITCHID_BYTES).putChar('S').putLong(dpid).flip();
     }
 
     public byte[] getID() {
-	return getSwitchID(dpid).array();
+        return getSwitchID(dpid).array();
     }
 
     public ByteBuffer getIDasByteBuffer() {
-	return getSwitchID(dpid);
+        return getSwitchID(dpid);
     }
 }