Need help - How to list images in private Gitlab container registry and how to pull image from there

[starguy]

Dear docker-java community,

I stumbled over your helpfull API. Now im trying to use it to query my private gitlab container registry to get the images available there.
And second i like to pull some image from that registry.

Can you please provide some code how to achieve that?

With kind regards
starguy

Additional: I managed to pull a image from the registry. But im still not able to query the registry to get a list of the images available there?