[rules-users] ClassLoader Problem

Hi, I am using version 4.0.7 of Drools. I am trying to load facts with a particular ClassLoader and compiling the rules using the same ClassLoader: ------ Reader source = new FileReader("plugin/Sample.drl"); ClassLoader pluginClassLoader = new PluginClassLoader(); Thread.currentThread().setContextClassLoader( pluginClassLoader ); PackageBuilder builder = new PackageBuilder(new PackageBuilderConfiguration(pluginClassLoader)); builder.addPackageFromDrl(source); Package pkg = builder.getPackage(); RuleBase ruleBase = RuleBaseFactory.newRuleBase(); ruleBase.addPackage(pkg); ------ This works fine for usage of the fact types in the LHS of rules and for field extraction. But when I add a method invocation or an update statement on a fact to the RHS of a rule I get a rule compilation error: ------- org.drools.rule.InvalidRulePackage: Rule Compilation error : [Rule name=Hello World, agendaGroup=MAIN, salience=0, no-loop=false] com/sample/Rule_Hello_World_0.java (6:267) : plugin.Message cannot be resolved to a type ------- I have reduced the problem to a minimal complexity (see attachments). Any ideas? By the way: do I really need to set both the ClassLoader in the PackageBuilderConfiguration AND the ContextClassLoader (as described in http://blog.athico.com/2006/12/dynamically-generated-class-beans-as.html)? Thanks in advance! Best regards Yann Massard package com.sample import plugin.*; // change to plugin.Message and it won't work! rule "Hello World" when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); // NONE OF THE FOLLOWING WORKS: m.setMessage( "Goodbye cruel world" ); m.setStatus( Message.GOODBYE ); update( m ); end rule "GoodBye" no-loop true when m : Message( status == Message.GOODBYE, message : message ) then System.out.println( message ); // NONE OF THE FOLLOWING WORKS: m.setMessage( message ); end