See the following exception:
Situation was that I deleted all connected CMRs in the UI and the restarted it while being in the configuration manager. The upper exception was then thrown.
SUCCESS: Integrated in
inspectIT - Integration #190
INSPECTIT-2129: Fixed CMR selection in the configuration views (patrice.bouillet: 250363ae982962c917bc694b3768bb9c6181881c)
(edit) inspectit.ui.rcp/src/main/java/rocks/inspectit/ui/rcp/ci/view/InstrumentationManagerViewPart.java
(edit) inspectit.ui.rcp/src/main/java/rocks/inspectit/ui/rcp/ci/view/AbstractTableBasedManagerView.java
(edit) inspectit.ui.rcp/src/main/java/rocks/inspectit/ui/rcp/ci/view/BusinessContextManagerViewPart.java