Thanks for the comment. Regarding your suggestions:
I am working on adding support for customizing the compact mode value label. This is already part of the web component and is released in version 2.5.0-alpha though I have not had time to work on the Java integration.
The placeholder is not available in compact mode by design. Though, once #1 (from above) is released, you should have the possibility to customize this as well.
Great! Java integration would be really great if your timelines permit.
Achieving #1 mentioned by you will have a customized place holder - agreed. But it’ll still show something like “0-cities”, which is not really pretty. Instead of that we can have “Select” / “Choose” or any other user defined placeholder ‘until no value is seleted’.