Server Under Test: Apache TomEE 7.0.0-plus on Java 1.8.0_77-b03.
Version used: TomEE Plus:
"...Apache TomEE Plus delivers all that is in the Web Profile and JAX-RS, plus EJB Full, Java EE Connector Architecture, JMS and JAX-WS..."
apache-tomee-plus-7.0.0/webapps curl -O -L https://github.com/AdamBien/server-smoke/releases/download/v0.0.1/server-smoke.war
TomEE is a small and fast server with decent Java EE 7 support (however it is not formally certified). TomEE is based on Tomcat and comes with comparable footprint. The fully loaded "plus" edition is only ~17 MB larger (download and disk size), than the stripped down webprofile download.
Commercial support is available for TomEE directly from tomitribe -- the source.
Another capable microservices runtime.
This blog is running on TomEE without any issues for years.