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

Change-Id: I3ade52ff15b3114f5748ab3151c02c8c74af38f0
diff --git a/utils/misc/src/test/java/org/onlab/packet/IGMPTest.java b/utils/misc/src/test/java/org/onlab/packet/IGMPTest.java
index 7634bbf..6a8a37b 100644
--- a/utils/misc/src/test/java/org/onlab/packet/IGMPTest.java
+++ b/utils/misc/src/test/java/org/onlab/packet/IGMPTest.java
@@ -73,7 +73,7 @@
 
     @Test
     public void testDeserializeTruncated() throws Exception {
-        byte [] bits = igmpQuery.serialize();
+        byte[] bits = igmpQuery.serialize();
         PacketTestUtils.testDeserializeTruncated(deserializer, bits);
 
         bits = igmpMembership.serialize();
@@ -82,14 +82,14 @@
 
     @Test
     public void testDeserializeQuery() throws Exception {
-        byte [] data = igmpQuery.serialize();
+        byte[] data = igmpQuery.serialize();
         IGMP igmp = deserializer.deserialize(data, 0, data.length);
         assertTrue(igmp.equals(igmpQuery));
     }
 
     @Test
     public void testDeserializeMembership() throws Exception {
-        byte [] data = igmpMembership.serialize();
+        byte[] data = igmpMembership.serialize();
         IGMP igmp = deserializer.deserialize(data, 0, data.length);
         assertTrue(igmp.equals(igmpMembership));
     }