Organized imports for main classes

Change-Id: I3b05d7f289706aef04019a820be9989f8fb54945
diff --git a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowProgrammer.java b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowProgrammer.java
index 5624b00..4a25cd3 100644
--- a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowProgrammer.java
+++ b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowProgrammer.java
@@ -5,12 +5,6 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import org.openflow.protocol.OFFlowRemoved;
-import org.openflow.protocol.OFMessage;
-import org.openflow.protocol.OFType;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import net.floodlightcontroller.core.FloodlightContext;
 import net.floodlightcontroller.core.IFloodlightProviderService;
 import net.floodlightcontroller.core.IOFMessageListener;
@@ -25,6 +19,12 @@
 import net.onrc.onos.core.registry.IControllerRegistryService;
 import net.onrc.onos.core.util.FlowEntryId;
 
+import org.openflow.protocol.OFFlowRemoved;
+import org.openflow.protocol.OFMessage;
+import org.openflow.protocol.OFType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
  * FlowProgrammer is a module responsible to maintain flows installed to switches.
  * FlowProgrammer consists of FlowPusher and FlowSynchronizer.