A little break down example for a Stackoverflow question related to maven-shade-plugin and openEJB

##Base Setting:

• demo-services: Hibernate Service and one Entity, EJB Module
• demo-main: Module for Shading containing the DemoMain class to start the EJBContainer. Shading happens here.

##Problem (solved):

• Starting DemoMain via IDE (IntelliJ 2016.2.5) does work.

• Starting the shaded jar via java -jar demo-shade-1.0-SNAPSHOT.jar and the conf/openejb.xml in the same directory, work too.