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Exception while invoking remote EJB methods from tomcat...

Prem Shankar

Joined: Jul 28, 2003
Posts: 21


Our application is using tomcat-6.0.18 as a front end server and for backend we are using JBoss 4.0.1Sp1.
I have deployed an ejb in the jboss server and trying to access it from front end. Both the servers are running in the same local machine.
I get the following error whenever home.create(); is called from tomcat. However when the ejb remote methods are called using a simple client(public static void main) it works fine. Also instead of localhost:1099 if I am pointing to a different server it works fine.

Following is the code snippet:This code is called during startup of the server.
public void connection() throws Exception {
System.out.println("Testing EJB Connection");
Context ctx = getInitialContext();
Object objref = ctx.lookup("CRUD");
Class clazz = getHomeClass("CRUD", objref);
CRUDHome home = (CRUDHome) PortableRemoteObject.narrow(objref, clazz);
CRUDRemote crudService = home.create();
List communityStatus = CommunityStatusDTO());
System.out.println("Tested EJB Connection--"+communityStatus.size());


private Context getInitialContext() throws Exception {
//TODO: remove hard coding.
Properties p = new Properties();

p.put("java.naming.provider.url", "jnp://localhost:1099");

return new InitialContext(p);

The same code snippet when invoked using a client is getting fired without any exeption.

Following is the stack trace of exception when called within Tomcat:

SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.RuntimeException: java.rmi.ConnectException: Failure during invoke; nested exception is:
at com.tollbrothers.archonline.ui.bean.StaticDataLoader.postProcessBeanFactory(
at org.springframework.web.context.ContextLoader.createWebApplicationContext(
at org.springframework.web.context.ContextLoader.initWebApplicationContext(
at org.springframework.web.context.ContextLoaderListener.contextInitialized(
at org.apache.catalina.core.StandardContext.listenerStart(
at org.apache.catalina.core.StandardContext.start(
at org.apache.catalina.core.ContainerBase.addChildInternal(
at org.apache.catalina.core.ContainerBase.addChild(
at org.apache.catalina.core.StandardHost.addChild(
at org.apache.catalina.startup.HostConfig.deployDescriptor(
at org.apache.catalina.startup.HostConfig.deployDescriptors(
at org.apache.catalina.startup.HostConfig.deployApps(
at org.apache.catalina.startup.HostConfig.start(
at org.apache.catalina.startup.HostConfig.lifecycleEvent(
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(
at org.apache.catalina.core.ContainerBase.start(
at org.apache.catalina.core.StandardHost.start(
at org.apache.catalina.core.ContainerBase.start(
at org.apache.catalina.core.StandardEngine.start(
at org.apache.catalina.core.StandardService.start(
at org.apache.catalina.core.StandardServer.start(
at org.apache.catalina.startup.Catalina.start(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at org.apache.catalina.startup.Bootstrap.start(
at org.apache.catalina.startup.Bootstrap.main(
Caused by: java.rmi.ConnectException: Failure during invoke; nested exception is:
at org.jboss.invocation.pooled.interfaces.PooledInvokerProxy.invoke(
at org.jboss.invocation.InvokerInterceptor.invokeInvoker(
at org.jboss.invocation.MarshallingInvokerInterceptor.invoke(
at org.jboss.proxy.TransactionInterceptor.invoke(
at org.jboss.proxy.SecurityInterceptor.invoke(
at org.jboss.proxy.ejb.HomeInterceptor.invoke(
at org.jboss.proxy.ClientContainer.invoke(
at $Proxy3.create(Unknown Source)
at com.tollbrothers.archonline.ui.bean.LookupData.connection(
at com.tollbrothers.archonline.ui.bean.LookupData.populateStaticData(
at com.tollbrothers.archonline.ui.bean.LookupData.populateData(
at com.tollbrothers.archonline.ui.bean.StaticDataLoader.postProcessBeanFactory(
... 30 more
Caused by:
at org.jboss.invocation.pooled.interfaces.PooledInvokerProxy.invoke(

Any help would be appreciated. Thanks in advance

PremShankar N.
It is sorta covered in the JavaRanch Style Guide.
subject: Exception while invoking remote EJB methods from tomcat...