Removed "import ...util.*" statement and replace it with
importing each individual class as needed.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowManager.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowManager.java
index 67d16f7..84b175f 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowManager.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowManager.java
@@ -26,7 +26,15 @@
import net.onrc.onos.ofcontroller.flowprogrammer.IFlowPusherService;
import net.onrc.onos.ofcontroller.forwarding.IForwardingService;
import net.onrc.onos.ofcontroller.topology.Topology;
-import net.onrc.onos.ofcontroller.util.*;
+import net.onrc.onos.ofcontroller.util.Dpid;
+import net.onrc.onos.ofcontroller.util.FlowEntry;
+import net.onrc.onos.ofcontroller.util.FlowEntrySwitchState;
+import net.onrc.onos.ofcontroller.util.FlowEntryUserState;
+import net.onrc.onos.ofcontroller.util.FlowEntryId;
+import net.onrc.onos.ofcontroller.util.FlowId;
+import net.onrc.onos.ofcontroller.util.FlowPath;
+import net.onrc.onos.ofcontroller.util.FlowPathUserState;
+import net.onrc.onos.ofcontroller.util.Pair;
import net.onrc.onos.ofcontroller.util.serializers.KryoFactory;
import com.esotericsoftware.kryo2.Kryo;