Check for nulls.
Start Container with configuration
Shutdown container with try
Load tomcat-juli 'after' tomee-juli to preserve maven classloader
Close Container in tests.

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/branches/tomee-1.7.x@1625691 13f79535-47bb-0310-9956-ffa450edef68