[ONOS-3737] Bump up checkstyle version from 2.16 to 2.17 with some compilation fixes

Change-Id: I3ade52ff15b3114f5748ab3151c02c8c74af38f0
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/InstructionJsonMatcher.java b/core/common/src/test/java/org/onosproject/codec/impl/InstructionJsonMatcher.java
index 4c49d64..3f65e8c 100644
--- a/core/common/src/test/java/org/onosproject/codec/impl/InstructionJsonMatcher.java
+++ b/core/common/src/test/java/org/onosproject/codec/impl/InstructionJsonMatcher.java
@@ -230,7 +230,7 @@
         final JsonNode jsonOduSignal = instructionJson.get("oduSignalId");
         int jsonTpn = jsonOduSignal.get("tributaryPortNumber").intValue();
         int jsonTsLen = jsonOduSignal.get("tributarySlotLength").intValue();
-        byte [] tributaryBitMap = HexString.fromHexString(jsonOduSignal.get("tributarySlotBitmap").asText());
+        byte[] tributaryBitMap = HexString.fromHexString(jsonOduSignal.get("tributarySlotBitmap").asText());
         OduSignalId  jsonOduSignalId = OduSignalId.oduSignalId(jsonTpn, jsonTsLen, tributaryBitMap);
         if (!instructionToMatch.oduSignalId().equals(jsonOduSignalId)) {
             description.appendText("oduSignalId was " + instructionToMatch);