Update copyright date

impl/pom.xml

diff --git a/impl/pom.xml b/impl/pom.xml
index 3ee7ef4..899cc13 100644
--- a/impl/pom.xml
+++ b/impl/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright (c) 1997, 2018 Oracle and/or its affiliates and others.
+    Copyright (c) 1997, 2020 Oracle and/or its affiliates and others.
     All rights reserved.
 
     This program and the accompanying materials are made available under the