I want to add a complete folder to the liquibase classpath. In this folder, the database-driver is stored.
I neither want to copy the driver to another folder (because it is also part of the shipped product) nor I want to specify the concrete jar-file (because we might change the shipped driver-version).
This is a general limitation of java, not liquibase. To fix this, you would need to write your own launcher - either a new version of java.exe or a wrapper script in the scripting language of your choice.