Hi, Which version of drools are you using? Make sure you are using the same version in guvnor and in your application. Best, El jul 26, 2010 7:48 a.m., "Pardeep Ruhil" <Pardeep.Ruhil(a)lntinfotech.com&gt; escribió: Hi, I have created a rule in Drools Guvnor and when I am trying to access it in my code I am getting the below exception. java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:425) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:121) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:110) at org.ofbiz.drools.event.drool.RuleIntegrate.createKnowledgeBase(RuleIntegrate.java:45) at org.ofbiz.drools.event.drool.RuleIntegrate.createWorkingMemory(RuleIntegrate.java:29) at org.ofbiz.payRoll.PayRollTax.callPayRollTaxRule(PayRollTax.java:23) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.ofbiz.service.engine.StandardJavaEngine.serviceInvoker(StandardJavaEngine.java:100) at org.ofbiz.service.engine.StandardJavaEngine.runSync(StandardJavaEngine.java:57) at org.ofbiz.service.ModelServiceReader$GenericInvokerImpl.runSync(ModelServiceReader.java:761) at _$gen.file_58$.D_58$.Dev.swapnilcode.ofbiz_45$09_45$July_45$2010.hot_45$deploy.payRoll.servicedef.services_46$xml_35 $payRollTax.runSync(file:/D:/Dev/swapnilcode/ofbiz-09-July-2010/hot-deploy/payRoll/servicedef/services.xml#payRollTax:9) at org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:399) at org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:226) at org.ofbiz.service.GenericDispatcher.runSync(GenericDispatcher.java:165) at org.ofbiz.webapp.event.ServiceEventHandler.invoke(ServiceEventHandler.java:336) at org.ofbiz.webapp.control.RequestHandler.runEvent(RequestHandler.java:637) at org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:383) at org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:227) at org.ofbiz.webapp.control.ControlServlet.doPost(ControlServlet.java:90) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:271) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) Caused by: java.net.SocketException: Unexpected end of file from server at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:769) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632) at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:766) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1000) at org.drools.io.impl.UrlResource.grabStream(UrlResource.java:154) at org.drools.io.impl.UrlResource.getInputStream(UrlResource.java:102) at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:414) My changeset.xml file is : <change-set xmlns=*'http://drools.org/drools-5.0/change-set'* xmlns:xs=*'http://www.w3.org/2001/XMLSchema-instance'* xs:schemaLocation=*'http://drools.org/drools-5.0/change-setdrools-cha... * > <add> <resource source=*' http://localhost:8441/DroolsGuvenor/org.drools.guvnor.Guvnor/package/payR... *type=*'PKG'* /> </add> </change-set> Please help me in this. Thanks & Regards Pradeep Ruhil ------------------------------ This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ______________________________________________________________________ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users