Calling non ejb from ejb using jndi lookup

Is it possible to call a non ejb java object from an ejb using a jndi lookup?
For example, we have a java class where main registers itself with our application server (JBoss 3.0.1). We have a test client that can use jndi to look up the object, but we can't get an ejb inside the application server to use the object.
Are we trying to do the impossible? If my question is not clear, please let me know so I can try to clarify.
Thanks

JNDI uses factories to create objects.
It's possible that JBoss has a Bean Factory which you can use to create your instance.
Tomcat has a Bean factory in its JNDI implementation. I use it just as you have indicated.
The JBoss documenation may help?
Dave

Similar Messages

Calling BRM from UDF using JNDI lookup with @EJB annotation

Hi Experts
I am trying to implement a UDF to invoke my BRM Rules set via JNDI Lookup instead of a SOAP Channel lookup.
I have had a look at the following links/docs:
Calling BRM from UDF using Public API
http://www.gleanster.com/system/resources/W1siZiIsIjIwMTIvMDgvMDcvMjAvNDcvNTAvNDMvVGhpbmdzX1lvdV9TaG91bGRfS25vd19hYm91dF9TQVBfTmV0V2VhdmVyX0JSTS5wZGYiXV0/Things%20You%20Should%20Know%20about%20SAP%20NetWeaver%20BRM.pdf
For item 1 above, the example looks really good, but it doesnt explain how I get access to the following required imports from my UDF:
import com.sap.brms.qrules.ejb.*;
import com.sap.brms.qrules.engine.AbstractProject;
import com.sap.brms.qrules.engine.RuleEngine;
import com.sap.brms.qrules.engine.RulesetContext;
import javax.ejb.EJB;
The second document is really good as well, but I could not figure out how to get it to work from my UDF.
So, can anyone help me to understand specifically what is required to get this to work?
Is is possible to invoke the rule set from my UDF?
How do I give my UDF access to all the required jars/imports?
I have manage to create a new DC (Development Component) with a public part and this enables me to get my code to compile on my local PC but I am not able to activate it due to the server not having access to the same java packages as my local copy.
Any help would be greatly appreciated.

You resolve the dependency by importing the required jars with using the dependency tab for the mapping program.
As stipulated before, I have managed to resolve the dependency issue but I have now getting the same error as in the forum: Calling BRM from UDF using Public API
The specific error is:
com.sap.engine.services.cross.PortableRemoteObjectContainer.narrow(PortableRemoteObjectContainer.java:238)
Has anyome manage to get invoke a BRM Ruleset using JNDI?

UserTransaction - Scope using JNDI lookup from jspInit() method

Howdy,
I'm using JSP's with JavaBeans accessing a DataSource and some other enviroment variables using JNDI lookups. I've read that JNDI lookups can take a fair amount of time and should be limited whenever possible. My previous configuration had the JNDI lookups inside the constructors of the JavaBeans but I've recently decided to move them to the jspInit() method of the calling JSP. This way the lookup only needs to be performed once and then I pass the values to the JavaBean in a method called setContextVariables. Two of the references to objects that i'm sending are the UserTransaction and DataSource objects. Within the Javabeans I have userTran.begin() and commit() statements. So far it's running great but i'm starting to wonder about the thread safety of this method. My question lies in the actual delagation of the UserTransaction object to the calling client method. It seems that i'm passing the same transaction to every Javabean (or am I?) Is the transaction actually issued when the begin() method is called, or at the time of the JNDI lookup? To test everything out, I opened two sessions and put a breakpoint inside one of the transactions. When I stopped at the breakpoint I ran another thread (also using a transaction retrieved from the same JSP). Then I went back and resumed the first thread and everything seemed to work ok. So... this seems completely fantabulastic so far (definitely noticable response time increases) but I'm still a little skeptical. If anyone is using a process similar to this I would appreciate some feedback. Thanks.

Hi,
The EJB bean will use the client transaction when the following attributes are specified in descriptor.
1) Required
2) Mandatory
3) Supports
In Required case, if the client is associated with Transaction, then the EJB bean will use the same transaction. This is achieved by Transaction context. The EJB bean will use the same transaction context set by client. if the client doesn't have any transaction, then the container will create new transaction context for EJB bean and completes the transaction.
In Mandatory case, the client must be associated with Transaction so that EJB bean will use the same transaction. If the client doesn't associate with transaction, then container will throw TransactionRequiredException for EJB bean.
In Supports case, it works similar to Required case except that if the client doesn't associate with transaction, then there won't be any transaction in EJB bean.
hope this helps.

Error while calling PI webservice from EJB

Hi Experts,
We are getting exception while calling PI webservice from EJB which is deployed in CE 7.2. Earlier we used to call the same webservice but from different PI system at that it worked fine. Now we have changed the consumer proxies required in CE and tried to call from CE and it is throwing error. We have checked usernames and passwords that we are using to call the service and that is working fine. PI team tested from their side and li is also fine. We have also restarted the CE system but invain. Can somebody help on this. The below is the trace that we got.
Location: com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding
Text: Connection IO Exception. Check nested exception for details. (Connection reset).
[EXCEPTION]
com.sap.engine.services.webservices.espbase.client.bindings.exceptions.TransportBindingException: Connection IO Exception. Check nested exception for details. (Connection reset).
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.outputSOAPMessage(SOAPTransportBinding.java:419)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.call_SOAP(SOAPTransportBinding.java:1364)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.callWOLogging(SOAPTransportBinding.java:990)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.call(SOAPTransportBinding.java:944)
at com.sap.engine.services.webservices.espbase.client.jaxws.core.WSInvocationHandler.processTransportBindingCall(WSInvocationHandler.java:168)
at com.sap.engine.services.webservices.espbase.client.jaxws.core.WSInvocationHandler.invokeSEISyncMethod(WSInvocationHandler.java:121)
at com.sap.engine.services.webservices.espbase.client.jaxws.core.WSInvocationHandler.invokeSEIMethod(WSInvocationHandler.java:84)
at com.sap.engine.services.webservices.espbase.client.jaxws.core.WSInvocationHandler.invoke(WSInvocationHandler.java:65)
at $Proxy780.mioaRDMDataDistribution(Unknown Source)
at com.MDMEventListener.callToPIWS(MDMEventListener.java:100)
at com.MDMEventListener.ListenerMethod(MDMEventListener.java:173)
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 com.sap.engine.services.ejb3.runtime.impl.RequestInvocationContext.proceedFinal(RequestInvocationContext.java:47)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:166)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_WS.invoke(Interceptors_WS.java:31)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatesTransition.invoke(Interceptors_StatesTransition.java:19)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Resource.invoke(Interceptors_Resource.java:71)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Transaction.doWorkWithAttribute(Interceptors_Transaction.java:39)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Transaction.invoke(Interceptors_Transaction.java:23)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:189)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatelessInstanceGetter.invoke(Interceptors_StatelessInstanceGetter.java:16)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_SecurityCheck.invoke(Interceptors_SecurityCheck.java:25)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_ExceptionTracer.invoke(Interceptors_ExceptionTracer.java:17)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:177)
at com.sap.engine.services.ejb3.runtime.impl.DefaultInvocationChainsManager.startChain(DefaultInvocationChainsManager.java:138)
at com.sap.engine.services.ejb3.webservice.impl.DefaultImplementationContainer.invokeMethod(DefaultImplementationContainer.java:203)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.process0(RuntimeProcessingEnvironment.java:730)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.preProcess(RuntimeProcessingEnvironment.java:682)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.process(RuntimeProcessingEnvironment.java:324)
at com.sap.engine.services.webservices.runtime.servlet.ServletDispatcherImpl.doPostWOLogging(ServletDispatcherImpl.java:199)
at com.sap.engine.services.webservices.runtime.servlet.ServletDispatcherImpl.doPost(ServletDispatcherImpl.java:65)
at com.sap.engine.services.webservices.servlet.SoapServlet.doPost(SoapServlet.java:61)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:152)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:38)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:404)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:204)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:440)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:429)
at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:38)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:82)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:268)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:81)
at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.ResponseLogWriter.process(ResponseLogWriter.java:60)
at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.DefineHostFilter.process(DefineHostFilter.java:27)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.MonitoringFilter.process(MonitoringFilter.java:29)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.MemoryStatisticFilter.process(MemoryStatisticFilter.java:54)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.DSRHttpFilter.process(DSRHttpFilter.java:42)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:447)
at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:264)
at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:56)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)
at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
at com.sap.engine.services.webservices.jaxm.soap.HTTPSocket.readLine(HTTPSocket.java:950)
at com.sap.engine.services.webservices.jaxm.soap.HTTPSocket.getInputStream(HTTPSocket.java:414)
at com.sap.engine.services.webservices.jaxm.soap.HTTPSocket.getResponseCode(HTTPSocket.java:319)
at com.sap.engine.services.webservices.espbase.client.bindings.ClientHTTPTransport.getResponseCode(ClientHTTPTransport.java:209)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.outputSOAPMessage(SOAPTransportBinding.java:385)
... 78 more
Regards,
Pradeep

Hi Pradeep,
this looks like if the server is not reachable. Have you checked if both server are able to communicate? Maybe firewall rules block the request.
Regards,
Tobias

Calling stored procedure from EJB in JSever

I have some trouble to call stored procedure from EJB deployed to JServer on Oracle8i (815).
I have been able to sucessfully test the stored procedure using thin client JDBC driver. But when I user the default connection in JServer, the stored procedure never got called. Is there any restriction of EJB in JServer?
Thanks
null

Thanks man! that was a great help. looks like i am almost there. i created those items t obe hidden.
now i am passing three parameters to the procedure. my url for that column value looks like this,
javascript:P65_PARTITION_ID=#PARTITION_ID#;P65_DBC=#DBC#;P65_FILE_ID=#FILE_ID#;doSubmit('Sku_Save');
the #DBC# parameter is a name of the person that has spaces(firstname lastname). i am getting a javascript error saying,
Line: 1
Char: 37
Error:Expected ';'
i see that char 37 is the space after firstname.
any idea how i should get rid of this error.
Also, as you have been very helpful, a question further beyond :). the above procedure will return a OUT varchar parameter. i guess i have to create another item for that. how do i read it and display just below my report as text.
Thanks Again!

How to use JNDI lookup

Hi ,
I am creating a POC for my project.Its using ATG and spring frameworks using RAD 6.first I have created ATG sample project in that same EAR file i created sample Spring project.Both are running in the same EAR.
I want to use spring classes from ATG components to use those methods.that is i should pass parameters to spring project methods and i should get the return value after executing those methods.
I heard that using JNDI look up I can get spring project class objects using that I can invoke spring project methods.
My requirement is two projects will be running in the same EAR.But one project will not be having information about other projects.both are independent from other.Using JNDI look up i need to invoke Spring project methods.
Please anyone help me how to do this.
I used java:comp/env/com/dao/EmpDAO to get instance of my class EmpDAO.But i am getting naming exception.Can anyone help me how to do this
Thanks in advance.

If Tomcat is your servlet/JSP engine, they have a nice bit about how to do it:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
MOD

Calling Java API from ABAP using JCo (Part 2)

Hello,
This is an additional question to thread Calling Java API from ABAP using JCo
Has anyone managed to get the input parameter value
input.getString("REQUTEXT")
that is being passed from ABAP?
If yes, what kind of setting you need to do? Because when I execute, it has no value.
Thus, the below ECHOTEXT parameter returns blank value:
output.setValue(input.getString("REQUTEXT"),"ECHOTEXT");
When I debug by printing the below line, the input XML is indeed without value:
System.out.println(input.toXML());
Anybody knows how to pass input variable from ABAP to JAVA using JCo?
rgs,
hiroshi

Hallo Hiroshi,
as far as I can see, you are doing it the right way. The problem might be that the ABAP program does not fill in this parameter because something went wrong in the SAP System.
Have you tried setting a breakpoint (an HTTP session - remote breakpoint) and tried checking step by step if the value is being processed and put into the REQUTEXT field?
Bye,
Sameer

Need help in retrieving attributes from LDAP using JNDI

I am trying to retrieve attributes from LDAP using JNDI, but I'm getting the following error when I try to run my Java program.
Exception in thread "main" java.lang.NoClassDefFoundError: javax/naming/NamingException
I have all the jar files in my classpath: j2ee.jar, fscontext.jar and providerutil.jar. The interesting thing is that it gets compiled just fine but gives an error at run-time.
Could anyone tell me why I'm getting this error? Thanks!
Here's my code:
import javax.naming.*;
import javax.naming.directory.*;
import java.util.*;
import java.io.*;
class Getattr {
public static void main(String[] args) {
// Identify service provider to use
Hashtable env = new Hashtable(11);
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
// user     info
String userName = "username";
String password = "password";
// LDAP server specific information
String host = "ldaphostname";
String port = "portnumber";
String basedn = "o=organization,c=country";
String userdn = "cn=" + userName + "," + basedn;
env.put(Context.PROVIDER_URL, "ldap://" + host + ":" + port + "/" + basedn);
env.put(Context.SECURITY_PRINCIPAL, userdn);
env.put(Context.SECURITY_CREDENTIALS, password);
try {
System.setErr(new PrintStream(new FileOutputStream(new File("data.txt"))));
// Create the initial directory context
DirContext ctx = new InitialDirContext(env);
// Ask for all attributes of the object
Attributes attrs = ctx.getAttributes("cn=" + userName);
NamingEnumeration ne = attrs.getAll();
while(ne.hasMore()){
Attribute attr = (Attribute) ne.next();
if(attr.size() > 1){
for(Enumeration e = attr.getAll(); e.hasMoreElements() ;) {
System.err.println(attr.getID() + ": " + e.nextElement());
} else {
     System.err.println(attr.getID() + ": " + attr.get());
// Close the context when we're done
ctx.close();
} catch(javax.naming.NamingException ne) {
     System.err.println("Naming Exception: " + ne);
} catch(IOException ioe) {
     System.err.println("IO Exception: " + ioe);

That doesn't work either. It seems its not finding the NamingException class in any of the jar files. I don't know why? Any clues?

Calling Web Service from EJB using HTTP Client

Hi,
Scenario:
I need to Call a Web Service from an EJB Application.I used HttpClient for calling the Web Service in the EJB Application. When i call the execute method of the HttpCLient it throws an exception
The element type "META" must be terminated by the matching end-tag "</META>"
The input XML does not have a node called META.
When i call the Web Service using Http Client form an Java Application it is working fine.
Kindly Suggest me the changes/steps that needs to be done
Regards,
S.V.Satish Kumar

Hi Manish,
SOAP adapter does pass the message to XI (this message contains SOAP envelope although XI expects to get message without it), and during the mapping step i get "Runtime Exception in Message-Mapping transformatio~".
I suppose it's because i created proxy manually. I did so because when i imported WSDL, and tried to generate proxy in CRM, i got an error message that said that proxy couldn't be generated because external definitions are only allowed in XI 3. But my XI version is 3.0! And when I generate the same proxy in my R/3 system that is installed on WAS 640, it works.
What can I do?
Cheers,
Anya.

EJB 3.0 and jndi lookup (simple question)

hi all,
i am newbie on Weblogic Application Server and i have some issues,
i have weblogic application server 10.0, also i have oracle timesten in-memory database, i have configured datasource and deploy my ejb 3.0 application, but i could not done jndi lookup?
here is my example:
1. one stateless session bean :
import javax.ejb.Remote;
@Remote
public interface InsertSubscriber {
     public void insertSubscriber(SubscriberT subscriberT);
} 2. here is it's implementation :
@Remote(InsertSubscriber.class)
@Stateless
public class InsertSubscriberBean implements InsertSubscriber {
     @PersistenceContext(unitName = "TimesTenDS")
     private EntityManager oracleManager;
     public void insertSubscriber(SubscriberT subscriber)
          try {
               System.out.println("started");
               oracleManager.persist(subscriber);
               System.out.println("end");
          } catch (Exception e) {
               e.printStackTrace();
}3 and my test client :
public class Client {
     public static void main(String[] args) {
          Context ctx = null;
          Hashtable ht = new Hashtable();
          ht.put(Context.INITIAL_CONTEXT_FACTORY,
                    "weblogic.jndi.WLInitialContextFactory");
          ht.put(Context.PROVIDER_URL, "t3://192.9.200.222:7001");
          try {
               ctx = new InitialContext(ht);
               InsertSubscriber usagefasade = (InsertSubscriber) ctx
                         .lookup("ejb.InsertSubscriberBean");
          } catch (NamingException e) {
               e.printStackTrace();
          } finally {
               try {
                    ctx.close();
               } catch (Exception e) {
                    e.printStackTrace();
}what i did incorrect ???
i got error like this : Name not fount exception
when i tried to view jndi tree on weblogic server application console i found this :
     Binding Name:
TimestenExampleTimestenExample_jarInsertSubscriberBean_InsertSubscriber
     Class:
test.InsertSubscriberBean_o7jk9u_InsertSubscriberImpl_1000_WLStub
     Hash Code:
286
     toString Results:
weblogic.rmi.internal.CollocatedRemoteRef - hostID: '2929168367193491522S::billing_domain:AdminServer', oid: '286', channel: 'null'what does it mean how i can done lookup to jndi ?
Regards,
Paata Lominadze,
Magticom LTD.
Georgia.

Hi All,
I am using the weblogic cluster with session replication and EJB 2.0 with Local entity beans.
for fail-over session should be replicated to another server so we can achive the same session if 1st server fails.
Suppose i m using two managed server(server1,server2) in the cluster.I am storing the object of class ABC into session and object contains the instance of Local-EntityBean home but i put that as a transient.I have also override the readObject and write object method.
when write object is called on 1st server,readObject method should be called on second server so we will be sure that session is replicating properly.
pleaase find the code below : -
public IssuerPageBean() {
initEJB();
private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException {
stream.defaultReadObject();
initEJB();
initializeCommonObject();
private void writeObject(java.io.ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
private void initEJB() {
try {
ic = new InitialContext();
issuerHome = (LocalIssuerHome) ic.lookup("java:comp/env/Issuer");
} catch (NamingException e) {
e.printStackTrace();
in my case if i am calling the constructor IssuerPageBean(),it calls the initEJB() method and lookeup the entity local home properly but when readObject method is called on another server only initEJB() method is called directly and getting the exception below :
WARNING: Error during create -
javax.naming.NameNotFoundException: remaining name: env/ejb/Client
at weblogic.j2eeclient.SimpleContext.resolve(Ljavax/naming/Name;Z)Ljavax/naming/Context;(SimpleContext.java:35)
at weblogic.j2eeclient.SimpleContext.resolve(Ljavax/naming/Name;)Ljavax/naming/Context;(SimpleContext.java:39)
at weblogic.j2eeclient.SimpleContext.lookup(Ljavax/naming/Name;)Ljava/lang/Object;(SimpleContext.java:57)
at weblogic.j2eeclient.SimpleContext.lookup(Ljavax/naming/Name;)Ljava/lang/Object;(SimpleContext.java:57)
at weblogic.j2eeclient.SimpleContext.lookup(Ljava/lang/String;)Ljava/lang/Object;(SimpleContext.java:62)
at weblogic.jndi.factories.java.ReadOnlyContextWrapper.lookup(Ljava/lang/String;)Ljava/lang/Object;(ReadOnlyCont
extWrapper.java:45)
at weblogic.jndi.internal.AbstractURLContext.lookup(Ljava/lang/String;)Ljava/lang/Object;(AbstractURLContext.jav
a:130)
at javax.naming.InitialContext.lookup(Ljava/lang/String;)Ljava/lang/Object;(InitialContext.java:347)
at com.lb.equities.veda.tools.salesvault.jsp.ClientPageBean.initEJB()V(ClientPageBean.java:218)
at com.lb.equities.veda.tools.salesvault.jsp.ClientPageBean.readObject(Ljava/io/ObjectInputStream;)V(ClientPageB
ean.java:191)
at java.lang.LangAccessImpl.readObject(Ljava/lang/Class;Ljava/lang/Object;Ljava/io/ObjectInputStream;)V(Unknown
Source)
at java.io.ObjectStreamClass.invokeReadObject(Ljava/lang/Object;Ljava/io/ObjectInputStream;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava/lang/Object;Ljava/io/ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava/lang/Object;(Unknown Source)
at java.util.HashMap.readObject(Ljava/io/ObjectInputStream;)V(Unknown Source)
at java.lang.LangAccessImpl.readObject(Ljava/lang/Class;Ljava/lang/Object;Ljava/io/ObjectInputStream;)V(Unknown
Source)
at java.io.ObjectStreamClass.invokeReadObject(Ljava/lang/Object;Ljava/io/ObjectInputStream;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava/lang/Object;Ljava/io/ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Ljava/lang/Object;Ljava/io/ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Ljava/lang/Object;Ljava/io/ObjectStreamClass;)V(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.readObject0(Z)Ljava/lang/Object;(Unknown Source)
at java.io.ObjectInputStream.readObject()Ljava/lang/Object;(Unknown Source)
at weblogic.common.internal.ChunkedObjectInputStream.readObject()Ljava/lang/Object;(ChunkedObjectInputStream.jav
a:120)
at weblogic.rjvm.MsgAbbrevInputStream.readObject(Ljava/lang/Class;)Ljava/lang/Object;(MsgAbbrevInputStream.java:
121)
at weblogic.cluster.replication.ReplicationManager_WLSkel.invoke(ILweblogic/rmi/spi/InboundRequest;Lweblogic/rmi
/spi/OutboundResponse;Ljava/lang/Object;)Lweblogic/rmi/spi/OutboundResponse;(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(Lweblogic/rmi/extensions/server/RuntimeMethodDescriptor;Lweblogic
/rmi/spi/InboundRequest;Lweblogic/rmi/spi/OutboundResponse;)V(BasicServerRef.java:492)
Please help .
Thanks in Advance.
Edited by hforever at 03/04/2008 7:28 AM

Calling .ejb from .ejb

I am using Weblogic Workshop WLS8.1. I have one .ejb calling another .ejb. Appearenlty,
MyBeanHome.java MyBean.java resolve in the workshop. But they are not resolving
when I use ant build. Any suggestions.
Thanks

Hi John,
check the following URLS's for your requirement
1>procedure for Accessing WebService in ejb By using NetWeaver,
2>i am using webservice in ejb but it is giving Naming exception in NetWeaver (if you get naming exception while calling webservice from ejb)
3>http://help.sap.com/saphelp_webas630/helpdata/en/2c/ce9535c22ecd4db8820e238c3acce0/frameset.htm (Accessing the Web Services Context from a WS-EJB )
4>Webservice call does not return data
Do reward points if it helps

Call BPM flow from EJB container

Hi,
I wondered, since we can start a BPM flow through a webservice call, how we could call a webservice from an EJB 3.x container?
Anyone an idea?
Thx,
Wesley

You mean from a bean?
Like any other web service call, in which case your EJB will be a WS-Client
regards,
Harsha

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Hi,
My problem is : I have one application that call one EJB. This EJB must call another EJB from other container, in other server... Is it possible ???? How can I make this ????? I'm trying to call BuscaEnderecoHome from BuscaCEPBean....
I'm trying to do that but I'm having the following problem :
Oracle9iAS (1.0.2.2.1) Containers for J2EE initialized
Exception --> Erro em setSessionContext (ServicoPostalECTBean) - ERROR :
ejb/BuscaEnderecoHome not found in BuscaCEPBean
java.lang.NullPointerException
at com.ect.corporate.ejb.CEP.consultaPorCep(CEP.java:78)
at com.ect.corporate.ejb.BuscaCEPBean.consultaPorCEP(BuscaCEPBean.java:7
2)
at BuscaCEP_StatelessSessionBeanWrapper0.consultaPorCEP(BuscaCEP_Statele
ssSessionBeanWrapper0.java:54)
at java.lang.reflect.Method.invoke(Native Method)
at com.evermind.server.rmi.RMICallHandler.run(RMICallHandler.java:66)
at com.evermind.util.ThreadPoolThread.run(ThreadPoolThread.java:62)
Erro null

Hi,
My problem is : I have one application that call one EJB. This EJB must call another EJB from other container, in other server... Is it possible ???? How can I make this ????? I'm trying to call BuscaEnderecoHome from BuscaCEPBean....
I'm trying to do that but I'm having the following problem :
Oracle9iAS (1.0.2.2.1) Containers for J2EE initialized
Exception --> Erro em setSessionContext (ServicoPostalECTBean) - ERROR :
ejb/BuscaEnderecoHome not found in BuscaCEPBean
java.lang.NullPointerException
at com.ect.corporate.ejb.CEP.consultaPorCep(CEP.java:78)
at com.ect.corporate.ejb.BuscaCEPBean.consultaPorCEP(BuscaCEPBean.java:7
2)
at BuscaCEP_StatelessSessionBeanWrapper0.consultaPorCEP(BuscaCEP_Statele
ssSessionBeanWrapper0.java:54)
at java.lang.reflect.Method.invoke(Native Method)
at com.evermind.server.rmi.RMICallHandler.run(RMICallHandler.java:66)
at com.evermind.util.ThreadPoolThread.run(ThreadPoolThread.java:62)
Erro null

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I am trying to create an environment where I use
openejb as my EJB container, and JAKARTA Tomcat
as my
Servlet/JSP container. However,
i'm having a problem in lookingup my remote EJB from my
jakarta application.
That exact code works perfectly if I run it standalone. I
am using the same JRE. Jakarta has also loaded the
openejb-0.8.3.jar and openejb_client-0.8.3.jar
What I dont understand is why jakarta
would behave differently than command-line java when I
am
running in the same JRE on a single machine.
Any help would be much appreciated.

Several fairly major improvements have been maid in OpenEJB specifically for the Tomcat people. For one, the whole way you integrate them has completely been rewritten. Now all you have to do is copy a openejb_loader-0.9.1.war into the Tomcat webapps directory and change an init-param in it. Pretty straight forward. OpenEJB 0.8.3 won't work with Tomcat in the same VM, however OpenEJB 0.9.0 and up have been totally revamped in all things related to classloading so that it can co-exist with Tomcats unique classloading architecture.
O'Reilly just published an article detailing the ins and outs of the integration, it's a pretty good read:
http://www.onjava.com/pub/a/onjava/2003/02/12/ejb_tomcat.html

Question? calling a servlet from EJB.

Can anyone tell me how I would go about calling a servlet
from a session bean thatâs running in the same J2EE application.
Application server is Oracle10g.
Thanks.

Welcome to the forum
You seem to be misunderstanding something. Do some googling to learn what you need about servlets. Simplified, servlets are java code that's hosted by a web container, such as Tomcat. When a servlet gets called as a consequence of someone requesting a url from the container, it takes in a request object and a response object. All the magic is then in creating an appropriate response (e.g. html) for the incoming request.

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