Use ONAP recommended base Java Docker image

Issue-ID: CPS-304

Signed-off-by: Rishi.Chail <rishi.chail@est.tech>
Change-Id: I71db1d9c85225a33dd9fc4f2e5f7045d71ad3843
diff --git a/cps-parent/pom.xml b/cps-parent/pom.xml
index a11b7f4..6536cc8 100755
--- a/cps-parent/pom.xml
+++ b/cps-parent/pom.xml
@@ -3,6 +3,7 @@
   ============LICENSE_START=======================================================
   Copyright (c) 2021 Pantheon.tech.
   Modifications Copyright (C) 2021 Bell Canada.
+  Modifications Copyright (C) 2021 Nordix Foundation.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -36,7 +37,7 @@
 
     <properties>
         <app>org.onap.cps.Application</app>
-        <base.image>openjdk:11-jre-slim</base.image>
+        <base.image>nexus3.onap.org:10001/onap/integration-java11:8.0.0</base.image>
         <java.version>11</java.version>
         <minimum-coverage>0.9</minimum-coverage>
         <nexusproxy>https://nexus.onap.org</nexusproxy>