diff --git a/src/main/java/net/onrc/onos/flow/FlowManagerImpl.java b/src/main/java/net/onrc/onos/flow/FlowManagerImpl.java
index dafbf32..9e69115 100644
--- a/src/main/java/net/onrc/onos/flow/FlowManagerImpl.java
+++ b/src/main/java/net/onrc/onos/flow/FlowManagerImpl.java
@@ -30,10 +30,8 @@
 import net.onrc.onos.ofcontroller.util.FlowPath;
 import net.onrc.onos.ofcontroller.util.Port;
 import net.onrc.onos.ofcontroller.util.SwitchPort;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 import net.onrc.onos.util.LocalTopologyEventListener;
-import net.onrc.onos.util.GraphDBConnection.Transaction;
 
 public class FlowManagerImpl implements IFlowManager {
 	
diff --git a/src/main/java/net/onrc/onos/flow/IFlowManager.java b/src/main/java/net/onrc/onos/flow/IFlowManager.java
index 4063a7a..598da85 100644
--- a/src/main/java/net/onrc/onos/flow/IFlowManager.java
+++ b/src/main/java/net/onrc/onos/flow/IFlowManager.java
@@ -1,7 +1,5 @@
 package net.onrc.onos.flow;
 
-import java.util.Map;
-
 import net.floodlightcontroller.core.IOFSwitch;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.util.FlowEntry;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/INetMapTopologyObjects.java b/src/main/java/net/onrc/onos/ofcontroller/core/INetMapTopologyObjects.java
index 3cfa190..f0c398e 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/INetMapTopologyObjects.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/INetMapTopologyObjects.java
@@ -1,6 +1,5 @@
 package net.onrc.onos.ofcontroller.core;
 
-import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.flowcache.web.DatapathSummarySerializer;
 
 import org.codehaus.jackson.annotate.JsonIgnore;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddFlowResource.java
index 0763b8a..512001d 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddFlowResource.java
@@ -9,7 +9,6 @@
 import org.codehaus.jackson.JsonGenerationException;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.map.JsonMappingException;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.restlet.resource.Post;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddShortestPathFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddShortestPathFlowResource.java
index 59a8972..06de966 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddShortestPathFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/AddShortestPathFlowResource.java
@@ -7,7 +7,6 @@
 import net.onrc.onos.ofcontroller.util.FlowPath;
 
 import org.codehaus.jackson.JsonGenerationException;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.map.JsonMappingException;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.restlet.resource.Post;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/ClearFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/ClearFlowResource.java
index e51bc9d..435b29f 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/ClearFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/ClearFlowResource.java
@@ -3,7 +3,6 @@
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
 import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/DeleteFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/DeleteFlowResource.java
index fb3d100..e9bd680 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/DeleteFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/DeleteFlowResource.java
@@ -3,7 +3,6 @@
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
 import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/GetSummaryFlowsResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/GetSummaryFlowsResource.java
index 54c75f2..5c85c31 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/GetSummaryFlowsResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/GetSummaryFlowsResource.java
@@ -5,7 +5,6 @@
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IFlowPath;
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
 import net.onrc.onos.ofcontroller.util.FlowId;
-import net.onrc.onos.ofcontroller.util.FlowPath;
 
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementClearAllPathsFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementClearAllPathsFlowResource.java
index d0c013e..f00317b 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementClearAllPathsFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementClearAllPathsFlowResource.java
@@ -1,9 +1,7 @@
 package net.onrc.onos.ofcontroller.flowcache.web;
 
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
-import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetInstallPathsTimeNsecFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetInstallPathsTimeNsecFlowResource.java
index 2d2fbf6..bf75276 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetInstallPathsTimeNsecFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetInstallPathsTimeNsecFlowResource.java
@@ -1,9 +1,7 @@
 package net.onrc.onos.ofcontroller.flowcache.web;
 
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
-import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetPerFlowInstallTimeFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetPerFlowInstallTimeFlowResource.java
index 981c12c..3f758f9 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetPerFlowInstallTimeFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementGetPerFlowInstallTimeFlowResource.java
@@ -1,9 +1,7 @@
 package net.onrc.onos.ofcontroller.flowcache.web;
 
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
-import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementInstallPathsFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementInstallPathsFlowResource.java
index 911de89..7d56c92 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementInstallPathsFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementInstallPathsFlowResource.java
@@ -1,9 +1,7 @@
 package net.onrc.onos.ofcontroller.flowcache.web;
 
 import net.onrc.onos.ofcontroller.flowcache.IFlowService;
-import net.onrc.onos.ofcontroller.util.FlowId;
 
-import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementStorePathFlowResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementStorePathFlowResource.java
index 5eb8af0..6658fbb 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementStorePathFlowResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/web/MeasurementStorePathFlowResource.java
@@ -7,7 +7,6 @@
 import net.onrc.onos.ofcontroller.util.FlowPath;
 
 import org.codehaus.jackson.JsonGenerationException;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.map.JsonMappingException;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.restlet.resource.Post;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java b/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
index 1fe12c4..c1990ae 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
@@ -3,7 +3,6 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import net.floodlightcontroller.linkdiscovery.internal.LinkStorageImpl;
 import net.floodlightcontroller.linkdiscovery.internal.LinkStorageImpl.ExtractLink;
 import net.floodlightcontroller.routing.Link;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
index 6a9d433..01ca69b 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
@@ -29,11 +29,9 @@
 import net.floodlightcontroller.threadpool.IThreadPoolService;
 import net.onrc.onos.ofcontroller.core.ISwitchStorage;
 import net.onrc.onos.ofcontroller.core.INetMapStorage.DM_OPERATION;
-import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
 import net.onrc.onos.ofcontroller.core.ISwitchStorage.SwitchState;
 import net.onrc.onos.ofcontroller.core.internal.SwitchStorageImpl;
-import net.onrc.onos.ofcontroller.core.internal.TopoSwitchServiceImpl;
 import net.onrc.onos.ofcontroller.devicemanager.IDeviceStorage;
 import net.onrc.onos.ofcontroller.devicemanager.internal.DeviceStorageImpl;
 import net.onrc.onos.ofcontroller.linkdiscovery.ILinkStorage;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java b/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
index a051d4c..864bb74 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
@@ -24,7 +24,6 @@
 import net.onrc.onos.ofcontroller.util.Port;
 import net.onrc.onos.ofcontroller.util.SwitchPort;
 import net.onrc.onos.util.GraphDBConnection;
-import net.onrc.onos.util.GraphDBConnection.Transaction;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.openflow.util.HexString;
@@ -32,7 +31,6 @@
 import org.slf4j.LoggerFactory;
 
 import com.tinkerpop.blueprints.Direction;
-import com.tinkerpop.blueprints.TransactionalGraph.Conclusion;
 import com.tinkerpop.blueprints.Vertex;
 import com.tinkerpop.pipes.PipeFunction;
 import com.tinkerpop.pipes.branch.LoopPipe.LoopBundle;
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/DataPath.java b/src/main/java/net/onrc/onos/ofcontroller/util/DataPath.java
index f02552b..5f96414 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/DataPath.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/DataPath.java
@@ -2,7 +2,6 @@
 
 import java.util.ArrayList;
 
-
 import org.codehaus.jackson.annotate.JsonProperty;
 
 /**
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/Dpid.java b/src/main/java/net/onrc/onos/ofcontroller/util/Dpid.java
index ce8a4f6..c3cf3aa 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/Dpid.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/Dpid.java
@@ -1,13 +1,11 @@
 package net.onrc.onos.ofcontroller.util;
 
-import org.openflow.util.HexString;
-
 import net.onrc.onos.ofcontroller.util.serializers.DpidDeserializer;
 import net.onrc.onos.ofcontroller.util.serializers.DpidSerializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
+import org.openflow.util.HexString;
 
 /**
  * The class representing a network switch DPID.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
index ac32d0b..7dd0699 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
@@ -2,15 +2,6 @@
 
 import java.util.ArrayList;
 
-
-import net.floodlightcontroller.util.MACAddress;
-import net.onrc.onos.ofcontroller.util.FlowEntryAction;
-import net.onrc.onos.ofcontroller.util.FlowEntryErrorState;
-import net.onrc.onos.ofcontroller.util.FlowEntryId;
-import net.onrc.onos.ofcontroller.util.FlowEntryMatch;
-import net.onrc.onos.ofcontroller.util.FlowEntrySwitchState;
-import net.onrc.onos.ofcontroller.util.FlowEntryUserState;
-
 import org.codehaus.jackson.annotate.JsonIgnore;
 import org.codehaus.jackson.annotate.JsonProperty;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryAction.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryAction.java
index 858272c..22aef98 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryAction.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryAction.java
@@ -1,7 +1,6 @@
 package net.onrc.onos.ofcontroller.util;
 
 import net.floodlightcontroller.util.MACAddress;
-import net.onrc.onos.ofcontroller.util.Port.PortValues;
 
 import org.codehaus.jackson.annotate.JsonProperty;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryId.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryId.java
index 7a8f67b..c4e75a5 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryId.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntryId.java
@@ -5,7 +5,6 @@
 import net.onrc.onos.ofcontroller.util.serializers.FlowEntryIdDeserializer;
 import net.onrc.onos.ofcontroller.util.serializers.FlowEntryIdSerializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowId.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowId.java
index b9652b8..2310972 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowId.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowId.java
@@ -5,7 +5,6 @@
 import net.onrc.onos.ofcontroller.util.serializers.FlowIdDeserializer;
 import net.onrc.onos.ofcontroller.util.serializers.FlowIdSerializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowPath.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowPath.java
index 29898e6..f9385e7 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowPath.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowPath.java
@@ -5,8 +5,6 @@
 import net.floodlightcontroller.util.MACAddress;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IFlowEntry;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IFlowPath;
-import net.onrc.onos.ofcontroller.util.FlowEntryMatch;
-import net.onrc.onos.ofcontroller.util.FlowId;
 
 import org.codehaus.jackson.annotate.JsonProperty;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/IPv4.java b/src/main/java/net/onrc/onos/ofcontroller/util/IPv4.java
index a9d7d85..2081bbe 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/IPv4.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/IPv4.java
@@ -3,7 +3,6 @@
 import net.onrc.onos.ofcontroller.util.serializers.IPv4Deserializer;
 import net.onrc.onos.ofcontroller.util.serializers.IPv4Serializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/IPv4Net.java b/src/main/java/net/onrc/onos/ofcontroller/util/IPv4Net.java
index fdc6dca..52e6535 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/IPv4Net.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/IPv4Net.java
@@ -1,10 +1,8 @@
 package net.onrc.onos.ofcontroller.util;
 
-import net.onrc.onos.ofcontroller.util.IPv4;
 import net.onrc.onos.ofcontroller.util.serializers.IPv4NetDeserializer;
 import net.onrc.onos.ofcontroller.util.serializers.IPv4NetSerializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/IPv6.java b/src/main/java/net/onrc/onos/ofcontroller/util/IPv6.java
index 82d1db5..2d28db8 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/IPv6.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/IPv6.java
@@ -1,13 +1,11 @@
 package net.onrc.onos.ofcontroller.util;
 
-import org.openflow.util.HexString;
-
 import net.onrc.onos.ofcontroller.util.serializers.IPv6Deserializer;
 import net.onrc.onos.ofcontroller.util.serializers.IPv6Serializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
+import org.openflow.util.HexString;
 
 /**
  * The class representing an IPv6 address.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/IPv6Net.java b/src/main/java/net/onrc/onos/ofcontroller/util/IPv6Net.java
index aacb648..bafff24 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/IPv6Net.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/IPv6Net.java
@@ -1,10 +1,8 @@
 package net.onrc.onos.ofcontroller.util;
 
-import net.onrc.onos.ofcontroller.util.IPv6;
 import net.onrc.onos.ofcontroller.util.serializers.IPv6NetDeserializer;
 import net.onrc.onos.ofcontroller.util.serializers.IPv6NetSerializer;
 
-import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.map.annotate.JsonDeserialize;
 import org.codehaus.jackson.map.annotate.JsonSerialize;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/SwitchPort.java b/src/main/java/net/onrc/onos/ofcontroller/util/SwitchPort.java
index afc2af3..95a934f 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/SwitchPort.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/SwitchPort.java
@@ -1,7 +1,5 @@
 package net.onrc.onos.ofcontroller.util;
 
-import net.onrc.onos.ofcontroller.util.Port;
-
 import org.codehaus.jackson.annotate.JsonProperty;
 
 /**
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidDeserializer.java
index f6b1ea0..9075f96 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.Dpid;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidSerializer.java
index 0da74d4..7ece4d3 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/DpidSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.Dpid;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.Dpid;
-
 /**
  * Serialize a DPID as a string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdDeserializer.java
index 7a15ddc..72ddfea 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.FlowEntryId;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdSerializer.java
index 00f4d61..bf73265 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowEntryIdSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.FlowEntryId;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.FlowEntryId;
-
 /**
  * Serialize a Flow Entry ID as a hexadecimal string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdDeserializer.java
index 6e04108..eb93a23 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.FlowId;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdSerializer.java
index 575126f..34f6e05 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/FlowIdSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.FlowId;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.FlowId;
-
 /**
  * Serialize a Flow ID as a hexadecimal string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Deserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Deserializer.java
index 13ddc0d..daf90af 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Deserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Deserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.IPv4;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetDeserializer.java
index 1f30e91..f67ab38 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.IPv4Net;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetSerializer.java
index 2580550..0454a58 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4NetSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.IPv4Net;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.IPv4Net;
-
 /**
  * Serialize an IPv4Net address as a string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Serializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Serializer.java
index 49dc140..aefc8a0 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Serializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv4Serializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.IPv4;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.IPv4;
-
 /**
  * Serialize an IPv4 address as a string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Deserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Deserializer.java
index 36109e8..7e3e5f6 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Deserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Deserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.IPv6;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetDeserializer.java
index ff3a0ee..d7631b3 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.onrc.onos.ofcontroller.util.IPv6Net;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetSerializer.java
index e0837d5..06dc6cf 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6NetSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.IPv6Net;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.IPv6Net;
-
 /**
  * Serialize an IPv6Net address as a string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Serializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Serializer.java
index b4ac122..b6709b8 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Serializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/IPv6Serializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.onrc.onos.ofcontroller.util.IPv6;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.onrc.onos.ofcontroller.util.IPv6;
-
 /**
  * Serialize an IPv6 address as a string.
  */
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressDeserializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressDeserializer.java
index 86ed2a7..dc4a0e2 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressDeserializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressDeserializer.java
@@ -2,16 +2,13 @@
 
 import java.io.IOException;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.codehaus.jackson.JsonProcessingException;
-import org.codehaus.jackson.ObjectCodec;
-import org.codehaus.jackson.map.JsonDeserializer;
-import org.codehaus.jackson.map.DeserializationContext;
-
 import net.floodlightcontroller.util.MACAddress;
 
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressSerializer.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressSerializer.java
index 85c8dc4..9c0e225 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressSerializer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/MACAddressSerializer.java
@@ -2,13 +2,13 @@
 
 import java.io.IOException;
 
+import net.floodlightcontroller.util.MACAddress;
+
 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.JsonProcessingException;
 import org.codehaus.jackson.map.JsonSerializer;
 import org.codehaus.jackson.map.SerializerProvider;
 
-import net.floodlightcontroller.util.MACAddress;
-
 /**
  * Serialize a MAC address as a string.
  */