Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/topology/serializers/PortSerializer.java b/src/main/java/net/onrc/onos/core/topology/serializers/PortSerializer.java
index 25e64d0..ae75dff 100644
--- a/src/main/java/net/onrc/onos/core/topology/serializers/PortSerializer.java
+++ b/src/main/java/net/onrc/onos/core/topology/serializers/PortSerializer.java
@@ -11,21 +11,21 @@
 
 public class PortSerializer extends SerializerBase<Port> {
 
-	public PortSerializer() {
-		super(Port.class);
-	}
+    public PortSerializer() {
+        super(Port.class);
+    }
 
-	@Override
-	public void serialize(Port port, JsonGenerator jsonGenerator, 
-			SerializerProvider serializerProvider)
-			throws IOException, JsonProcessingException {
-		jsonGenerator.writeStartObject();
-		jsonGenerator.writeStringField("state", "ACTIVE");
-		jsonGenerator.writeNumberField("number", port.getNumber());
-		jsonGenerator.writeStringField("desc", port.getDescription());
-		jsonGenerator.writeArrayFieldStart("devices");
-		jsonGenerator.writeEndArray();
-		jsonGenerator.writeEndObject();
-	}
+    @Override
+    public void serialize(Port port, JsonGenerator jsonGenerator,
+                          SerializerProvider serializerProvider)
+            throws IOException, JsonProcessingException {
+        jsonGenerator.writeStartObject();
+        jsonGenerator.writeStringField("state", "ACTIVE");
+        jsonGenerator.writeNumberField("number", port.getNumber());
+        jsonGenerator.writeStringField("desc", port.getDescription());
+        jsonGenerator.writeArrayFieldStart("devices");
+        jsonGenerator.writeEndArray();
+        jsonGenerator.writeEndObject();
+    }
 
 }