Saving .pem file fails when .pem with same name already exists

1. have a cloud 2. create a new key 'xxx' and let .pem to be stored 3. remove key 'xxx' but do not delete .pem 4. create key 'xxx' once again and let .pem to be stored Currently: you get IllegalStateException telling you, that key already exists Expected: Client should ask user if he really wants to overwrite existing key or suggest another location to save it.