thanks for your answer. So i read the Docs, but if i understood this right, i have to install Eclipse an load my existings Project in the Workspace, and then register such an event listener ?
So there is now possibility to this with the integrated KIE Workbench ?
actually there is, you need to create EventListenerProducer class that will be bundled as bean archive so CDI container will find it on the application class path and then RuntimeManager will register it on ksession. In the docs there is a section on how to register work item handlers and event listeners in CDI environment. kie workbench runs in CDI environment.