ONAP: Define Java version as part of the project verify job

This change introduce one ONAP Java build server.
On that ONAP build server multiple Java versions will be installed:
- JDK8
- JDK11
- JDK12
The correct Java version required for the job will be defined using
JAVA_HOME

Change-Id: I9ec54c3509b13bcea760c2a888a33beb7be9e90f
diff --git a/jjb/onap/portal/portal-verify-jobs.yaml b/jjb/onap/portal/portal-verify-jobs.yaml
index 9edb7b1..84a6d95 100644
--- a/jjb/onap/portal/portal-verify-jobs.yaml
+++ b/jjb/onap/portal/portal-verify-jobs.yaml
@@ -28,6 +28,7 @@
     stream:
       - 'master':
           branch: '{stream}'
+          jdk-version: java-8
 
     jobs:
       - 'onap-{project-name}-{stream}-verify-java'