Hi,
1. How are you running this program? In a server or as a main class in Eclipse?
2. Have you added the JDOM 2.x version? From the exception, it looks like it needs that class which isn’t found in the jar you added.
Please check if the supported jar is added to the project’s Deployment Assembly page (right click on the project > Properties > Deployment Assembly).
At this point, this looks like project specific issue and not related to CodeMix/Angular. If you can share with us the project, we can take a look.
–Swapna
Genuitec Support