HK2 version update.

Change-Id: I8e98a0e6d90e2a06094e949588b7a5339c8f9175

Author: pavelbucek

pom.xml

@@ -3,7 +3,7 @@
 
     DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 
-    Copyright (c) 2010-2016 Oracle and/or its affiliates. All rights reserved.
+    Copyright (c) 2010-2017 Oracle and/or its affiliates. All rights reserved.
 
     The contents of this file are subject to the terms of either the GNU
     General Public License Version 2 only ("GPL") or the Common Development
@@ -1895,7 +1895,7 @@
         <guava.version>18.0</guava.version>
         <hamcrest.version>1.3</hamcrest.version>
         <xmlunit.version>1.6</xmlunit.version>
-        <hk2.version>2.5.0-b30</hk2.version>
+        <hk2.version>2.5.0-b31</hk2.version>
         <httpclient.version>4.5</httpclient.version> <!-- TODO: 4.5.2 doesn't work; apache client connector tests -->
         <jackson.version>2.8.4</jackson.version>
         <jackson1.version>1.9.13</jackson1.version>