packaged mapping-service-plain.jar causing trouble on mapping-service restart

Due to the classpath scanning (?) of the mapping-service, the mapping-service-plain.jar contained in this repo causes trouble on restart (due to some conflicts with WebSecurity related class in the jar).

At the moment to avoid the problem, a startup script for the mapping-service should remove those files from the lib folders if they exist.

This problem will automatically be solved once we can use a proper mapping-service dependency during plugin development. Until then, I cannot really think of an elegant solution with the current project structure :(

The issue does not name a startup script or test. Inspect how the mapping-service restart handles its lib folders, reproduce the conflict involving mapping-service-plain.jar and the WebSecurity-related class, and verify that restarting works when the conflicting packaged files are handled automatically.

Written by the indexing model from the issue text.