Enable checkstyle check for blocks without braces.

Enable the checkstyle rule to check for block statements
without curly braces and fix any violations it finds.

Change-Id: Id4c58cea26f0d9ce7ed78643a4943c042886a12d
diff --git a/src/main/java/net/onrc/onos/core/util/FlowEntryActions.java b/src/main/java/net/onrc/onos/core/util/FlowEntryActions.java
index 421312e..62d9a65 100644
--- a/src/main/java/net/onrc/onos/core/util/FlowEntryActions.java
+++ b/src/main/java/net/onrc/onos/core/util/FlowEntryActions.java
@@ -119,8 +119,9 @@
 
         actions = new ArrayList<FlowEntryAction>();
 
-        if (decode.isEmpty())
+        if (decode.isEmpty()) {
             return;        // Nothing to do
+        }
 
         // Remove the '[' and ']' in the beginning and the end of the string
         if ((decode.length() > 1) && (decode.charAt(0) == '[') &&
@@ -134,8 +135,9 @@
         String[] parts = decode.split(";");
         for (int i = 0; i < parts.length; i++) {
             decode = parts[i];
-            if ((decode == null) || decode.isEmpty())
+            if ((decode == null) || decode.isEmpty()) {
                 continue;
+            }
             FlowEntryAction flowEntryAction = null;
             try {
                 flowEntryAction = new FlowEntryAction(decode);
@@ -143,8 +145,9 @@
                 // TODO: Ignore invalid actions for now
                 continue;
             }
-            if (flowEntryAction != null)
+            if (flowEntryAction != null) {
                 actions.add(flowEntryAction);
+            }
         }
     }
 }