Hi there, we try to load small rule packages containing java classes to be provided as globals and drl-definitions from a webserver using an URLClassloader. the "globals"classes could be read and their tests are ok, but as soon as a drl-file is loded which references souch a dynamically loaded "globals2 class, a class no found-Exception is fired. That could be expaned with the differenz class loaders used - the URLClassloader for loading the "globals"-Classes and the standard class loader used to load the drl-files via kbuilder.add( resourceFactory.newUrlResource(url), ResourceType.DRL); Is there any solution for this problem. Thanks in advance --Ulrich -- View this message in context: http://drools.46999.n3.nabble.com/Class-not-found-Exception-dynamically-l... Sent from the Drools: User forum mailing list archive at Nabble.com.