Hi Christian, thank you for your answer. I want to state, that there are no feelings from my side what is better. I want to collect the technical details for further decisions on the projects I maintain.
So, let's assume I do not use the configuration in a parent project (just add maven-bundle-plugin to the used plugins and set extensions=true) and also not use properties, the bnd.bnd file will result in less lines in the pom if I want to change the default configuration of the plugin. Are there other pros? Best regards, Markus