Web Activiti Modeler has several limitations. Activiti Designer in Eclipse environment provides more functionalities, like in the case of additional properties of elements specification. Therefore, we will open our model in Activiti Designer and prepare a jUnit test for it.

If the m2e plugin is not installed in your eclipse environment, please install it from the address: http://download.eclipse.org/technology/m2e/releases/Maven Integration for Eclipse version 1.4.1.
If slf4j plugin is missing as well, you can install them from another repository, e.g., http://www.fuin.org/p2-repository/.
After installation, remember to restart Eclipse.