I would like to develop for cumulocity and I wanted to try the demos from bitbucket (https://bitbucket.org/m2m/cumulocity-clients-java). Unfortunatelly, in order to run these, I need access to the Cumulocity Maven repository.
I also need access for writing new code as well.
Where can I find the relevant informations (Credentials/addresses)?
As described in the README.md please configure the Cumulocity repositories for your maven. Released dependencies to build the cumulocity-clients-java repo are available there without specific access permissions.
Make sure your build only refereces released cumulocity dependencies, not snapshots. You can easily distinguish them by the -SNAPSHOT suffix to their versions.