VESMapper container runs as root user and using non-standard image - openjdk:11-jre-slim.  For ONAP SECCOM complaince, require base following updates

1) Migrate to SECCOM recommended base image - onap/integration-java11:9.0.0 or latest - https://nexus3.onap.org/#browse/browse:docker.release:v2%2Fonap%2Fintegration-java11%2Ftags  

2) Modify application/docker execution to run as non-root

Benefits from switching over:

• minimal {java11,python} images maintained by integration team
• using currently "blessed by seccom" versions (:latest tag used)
• should limit spread of legal issues across layers *
• integration images will be the first to have automated compliance documentation 
• should limit spread of base layers (contributing to deployment footprint - more base layers = more to download, more to store etc...)