Hello Morten,
We can't replicate the case and, in fact, nothing has changed recently on that topic.
BTW, note that the libraries in shared are added to the classpaths of all Adapters, but not to the main classpath.
We need to see the log; but first, you should set the LightstreamerLogger.init logger at DEBUG level.
This should log, among many other things, the jars that are added to the various classloaders.