Enable checkstyle rule for JLS modifier order

JLS specifies a preferred order for modifiers in
declarations.  Enabled this rule and fixed the
problems that it encountered.

Change-Id: I5e8fa3d29f785ced4c61fbb8c7c8b168289f06e2
diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
index 234bea9..0600fe3 100644
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
@@ -28,7 +28,7 @@
  */
 public class PathCalcRuntime implements IFloodlightService {
     private NetworkGraph graph;
-    private final static Logger log = LoggerFactory.getLogger(PathCalcRuntime.class);
+    private static final Logger log = LoggerFactory.getLogger(PathCalcRuntime.class);
 
     public PathCalcRuntime(NetworkGraph g) {
         this.graph = g;