Hi list, try to make my first experiences with Drools 6. For that purpose I've modified slightly the 'KieFileSystemExample' ( https://github.com/droolsjbpm/drools/blob/6.0.0.CR3/drools-examples-api/k... ) as the code below shows. I try to use the newReaderResource(Reader reader) but when I run maven test I get the following error: Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.33 sec <<< FAILURE! - in org.drools.example.api.kiefilesystem.KieFileSystemExampleTest testGo(org.drools.example.api.kiefilesystem.KieFileSystemExampleTest) Time elapsed: 0.263 sec <<< ERROR! java.lang.RuntimeException: Unable to fetch module from resource :[ReaderResource resource=java.io.StringReader@6a5714de encoding='null'] at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:106) at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:192) at org.drools.compiler.kie.builder.impl.KieRepositoryImpl.addKieModule(KieRepositoryImpl.java:157) at org.drools.example.api.kiefilesystem.KieFileSystemExample.go(KieFileSystemExample.java:39) at org.drools.example.api.kiefilesystem.KieFileSystemExampleTest.testGo(KieFileSystemExampleTest.java:16) public class KieFileSystemExample { public String getRule() { String s = "" + "package org.drools.example.api.kiefilesystem \n\n" + "import org.drools.example.api.kiefilesystem.Message \n\n" + "global java.io.PrintStream out \n\n" + "rule \"rule 1\" when \n" + " m : Message( ) \n" + "then \n" + " out.println( m.getName() + \": \" + m.getText() ); \n" + "end \n" + "rule \"rule 2\" when \n" + " Message( text == \"Hello, HAL. Do you read me, HAL?\" ) \n" + "then \n" + " insert( new Message(\"HAL\", \"Dave. I read you.\" ) ); \n" + "end"; return s; } public void go(PrintStream out) { KieServices ks = KieServices.Factory.get(); KieRepository kr = ks.getRepository(); KieModule kModule = kr.addKieModule(ks.getResources().newReaderResource( (Reader) new StringReader(getRule()) )); KieContainer kContainer = ks.newKieContainer(kModule.getReleaseId()); KieSession kSession = kContainer.newKieSession(); kSession.setGlobal("out", out); kSession.insert(new Message("Dave", "Hello, HAL. Do you read me, HAL?")); kSession.fireAllRules(); } public static void main(String[] args) { new KieFileSystemExample().go(System.out); } } Any Idea? Thanks in advance. Regards, -markus