The property test.level might not be (re)defined in the module's pom

Getting an exception when instantiating a container:
ava.lang.IllegalArgumentException: Unknown level ""
  at org.jboss.logmanager.LogContext.getLevelForName(LogContext.java:203)

This is due to the test.level property not being properly set in the server module pom thus leaving a handler.CONSOLE.level="" in the logging.properties.