Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/topology/PortEvent.java b/src/main/java/net/onrc/onos/core/topology/PortEvent.java
index 65d0b94..2a18c08 100644
--- a/src/main/java/net/onrc/onos/core/topology/PortEvent.java
+++ b/src/main/java/net/onrc/onos/core/topology/PortEvent.java
@@ -4,23 +4,22 @@
 
 /**
  * Self-contained Port event Object
- *
+ * <p/>
  * TODO: We probably want common base class/interface for Self-Contained Event Object
- *
  */
 public class PortEvent {
     public static class SwitchPort {
-	public final Long dpid;
-	public final Long number;
+        public final Long dpid;
+        public final Long number;
 
-	/**
-	 * Default constructor for Serializer to use.
-	 */
-	@Deprecated
-	public SwitchPort() {
-	    dpid = null;
-	    number = null;
-	}
+        /**
+         * Default constructor for Serializer to use.
+         */
+        @Deprecated
+        public SwitchPort() {
+            dpid = null;
+            number = null;
+        }
 
         public SwitchPort(Long dpid, Long number) {
             this.dpid = dpid;
@@ -46,29 +45,29 @@
             int result = 1;
             result = prime * result + ((dpid == null) ? 0 : dpid.hashCode());
             result = prime * result
-        	    + ((number == null) ? 0 : number.hashCode());
+                    + ((number == null) ? 0 : number.hashCode());
             return result;
         }
 
         @Override
         public boolean equals(Object obj) {
             if (this == obj)
-        	return true;
+                return true;
             if (obj == null)
-        	return false;
+                return false;
             if (getClass() != obj.getClass())
-        	return false;
+                return false;
             SwitchPort other = (SwitchPort) obj;
             if (dpid == null) {
-        	if (other.dpid != null)
-        	    return false;
+                if (other.dpid != null)
+                    return false;
             } else if (!dpid.equals(other.dpid))
-        	return false;
+                return false;
             if (number == null) {
-        	if (other.number != null)
-        	    return false;
+                if (other.number != null)
+                    return false;
             } else if (!number.equals(other.number))
-        	return false;
+                return false;
             return true;
         }
     }
@@ -82,44 +81,44 @@
      */
     @Deprecated
     public PortEvent() {
-	id = null;
+        id = null;
     }
 
     public PortEvent(Long dpid, Long number) {
-	this.id = new SwitchPort(dpid, number);
+        this.id = new SwitchPort(dpid, number);
     }
 
     public Long getDpid() {
-	return id.dpid;
+        return id.dpid;
     }
 
     public Long getNumber() {
-	return id.number;
+        return id.number;
     }
 
     @Override
     public String toString() {
-	return "[PortEvent 0x" + Long.toHexString(id.dpid) + "@" + id.number + "]";
+        return "[PortEvent 0x" + Long.toHexString(id.dpid) + "@" + id.number + "]";
     }
 
     public static final int PORTID_BYTES = SwitchEvent.SWITCHID_BYTES + 2 + 8;
 
     public static ByteBuffer getPortID(Long dpid, Long number) {
-	if (dpid == null) {
-	    throw new IllegalArgumentException("dpid cannot be null");
-	}
-	if (number == null) {
-	    throw new IllegalArgumentException("number cannot be null");
-	}
-	return (ByteBuffer) ByteBuffer.allocate(PortEvent.PORTID_BYTES).putChar('S').putLong(dpid)
-		.putChar('P').putLong(number).flip();
+        if (dpid == null) {
+            throw new IllegalArgumentException("dpid cannot be null");
+        }
+        if (number == null) {
+            throw new IllegalArgumentException("number cannot be null");
+        }
+        return (ByteBuffer) ByteBuffer.allocate(PortEvent.PORTID_BYTES).putChar('S').putLong(dpid)
+                .putChar('P').putLong(number).flip();
     }
 
     public byte[] getID() {
-	return getPortID(getDpid(), getNumber()).array();
+        return getPortID(getDpid(), getNumber()).array();
     }
 
     public ByteBuffer getIDasByteBuffer() {
-	return getPortID(getDpid(), getNumber());
+        return getPortID(getDpid(), getNumber());
     }
 }