Hi nttam,

provided that you left the <classloader> value to its default value ("common") in the adapters.xml files relative to the involved Adapter Sets, you have to put common classes and libraries into the "shared/lib" and/or "shared/lib" folders of your Lightstreamer installation: please have a look at all README.txt files you can find here (even inside "classed" and "lib" subfolders").

Please also look at inline documentation of the <classloader> tag you can find here.

Hope this helps.

Thanks and Regards,
Gianluca