Hello, i tried to create a pojo and load it to Guvnor which would call an EJB on the same Jboss AS 7.1. Below code works in another app without problem. public class Calculation implements IFCalculation { IFRemoteCalculation remoteCalculation; public Calculation() { final String jndiName = "java:global/remoteejb/CalculationBean!com.gp.IFRemoteCalculation"; try { Properties env = new Properties(); env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.as.naming.InitialContextFactory"); env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces"); env.put(Context.PROVIDER_URL, "jnp://localhost:1099"); Context ic = new InitialContext(env); System.out.println("about to look up jndi name " + jndiName); Object obj = ic.lookup(jndiName); System.out.println("lookup returned " + obj); remoteCalculation = (IFRemoteCalculation) obj; } catch (NamingException e) { System.out.println("Nem talatam meg a calculation beant! " + e); } } public void add(String s, int faktor) { remoteCalculation.add(s, faktor); } public String getItems() { return remoteCalculation.getItems(); } public void setItems() { remoteCalculation.setItems(); } } When i load this as a POJO and try to use it in a Guvnor test scenario with my rules i get following error: 12:47:17,673 ERROR [org.drools.guvnor.server.RepositoryAssetService] (http--127.0.0.1-8080-5) Unable to run the scenario.: [Error: could not instantiate class: null] [Near : {... new com.gp.Calculation() ....}] ^ [Line: 1, Column: 5] at org.mvel2.ast.NewObjectNode.getReducedValue(NewObjectNode.java:294) [mvel2-2.1.0.drools4.jar:] at org.mvel2.MVELInterpretedRuntime.parseAndExecuteInterpreted(MVELInterpretedRuntime.java:106) [mvel2-2.1.0.drools4.jar:] at org.mvel2.MVELInterpretedRuntime.parse(MVELInterpretedRuntime.java:49) [mvel2-2.1.0.drools4.jar:] at org.mvel2.MVEL.eval(MVEL.java:92) [mvel2-2.1.0.drools4.jar:] at org.drools.testframework.ScenarioRunner.runScenario(ScenarioRunner.java:162) [droolsjbpm-ide-common-5.3.0.Final.jar:5.3.0.Final] at org.drools.testframework.ScenarioRunner.<init>(ScenarioRunner.java:89) [droolsjbpm-ide-common-5.3.0.Final.jar:5.3.0.Final] at org.drools.guvnor.server.RepositoryPackageService.runScenario(RepositoryPackageService.java:696) [classes:] at org.drools.guvnor.server.RepositoryPackageService.runScenario(RepositoryPackageService.java:559) [classes:] at org.drools.guvnor.server.RepositoryPackageService.runScenario(RepositoryPackageService.java:540) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_20] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_20] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_20] at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_20] at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:163) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.drools.guvnor.server.RepositoryPackageService_$$_javassist_seam_5.runScenario(RepositoryPackageService_$$_javassist_seam_5.java) [classes:] at org.drools.guvnor.server.RepositoryServiceServlet.runScenario(RepositoryServiceServlet.java:364) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_20] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_20] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_20] at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_20] at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) [gwt-servlet-2.3.0.jar:] at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) [gwt-servlet-2.3.0.jar:] at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) [gwt-servlet-2.3.0.jar:] at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) [gwt-servlet-2.3.0.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:] at org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:65) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37) [jboss-seam-2.2.2.Final.jar:2.2.2.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.10.Final.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.10.Final.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.10.Final.jar:] at java.lang.Thread.run(Thread.java:636) [rt.jar:1.6.0_20] Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [rt.jar:1.6.0_20] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) [rt.jar:1.6.0_20] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [rt.jar:1.6.0_20] at java.lang.reflect.Constructor.newInstance(Constructor.java:532) [rt.jar:1.6.0_20] at org.mvel2.ast.NewObjectNode.getReducedValue(NewObjectNode.java:268) [mvel2-2.1.0.drools4.jar:] ... 56 more Caused by: java.lang.NullPointerException at com.sun.naming.internal.VersionHelper12$InputStreamEnumeration$1.run(VersionHelper12.java:214) [rt.jar:1.6.0_20] at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.6.0_20] at com.sun.naming.internal.VersionHelper12$InputStreamEnumeration.getNextElement(VersionHelper12.java:211) [rt.jar:1.6.0_20] at com.sun.naming.internal.VersionHelper12$InputStreamEnumeration.hasMore(VersionHelper12.java:231) [rt.jar:1.6.0_20] at com.sun.naming.internal.ResourceManager.getApplicationResources(ResourceManager.java:487) [rt.jar:1.6.0_20] at com.sun.naming.internal.ResourceManager.getInitialEnvironment(ResourceManager.java:176) [rt.jar:1.6.0_20] at javax.naming.InitialContext.init(InitialContext.java:236) [rt.jar:1.6.0_20] at javax.naming.InitialContext.<init>(InitialContext.java:214) [rt.jar:1.6.0_20] at com.gp.Calculation.<init>(Calculation.java:23) [drools-core-5.3.0.Final.jar:] ... 61 more It seems it is not possible to get InitialContext in a pojo uploaded to Guvnor - or is there any way? Peter -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-pojo-InitialConext-tp3756527p375... Sent from the Drools: User forum mailing list archive at Nabble.com.