Minor fix.
diff --git a/src/main/java/org/testng/xml/XmlTest.java b/src/main/java/org/testng/xml/XmlTest.java
index e3bd05f..512cae2 100755
--- a/src/main/java/org/testng/xml/XmlTest.java
+++ b/src/main/java/org/testng/xml/XmlTest.java
@@ -125,7 +125,7 @@
    * Note: do not modify the returned value, use {@link #addIncludedGroup(String)}.
    */
   public List<String> getIncludedGroups() {
-    List<String> result = new ArrayList(m_includedGroups);
+    List<String> result = Lists.newArrayList(m_includedGroups);
     result.addAll(m_suite.getIncludedGroups());
     return result;
   }