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@lntinfotech.com> 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-set drools-change-set-5.0.xsd' >

   <add>

       <resource source='http://localhost:8441/DroolsGuvenor/org.drools.guvnor.Guvnor/package/payRoll_pradeep/LATEST' type='PKG' />

   </add>

</change-set>

 

 

Please help me in this.

 

Thanks & Regards

Pradeep Ruhil

 

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