Access EJB's in JServer from MS COM clients

We need to access our EJB's from MS COM Clients (written in C++ currently using OCI)
Any suggestions ?
Thanks in Advance
null

I got the same problem.
Some posts here suggest you should put weblogic.jar under /common/lib,
I tried it but it didn't work. I also tried to put it under
webapps/yourweb/web-inf/lib
but it didn't work too. At last I had to unpack the weblogic.jar and put
them under
webapps/yourweb/web-inf/classes. This at least solved the problem you
mentioned.
I got other problem like ClassCastException that might be due to my own
code.
Anyway you can try the above approach. And please post your results here
just let
others know.
Thanks.
"Gary Bartlett" <[email protected]> wrote in message
news:3ce3fdf1$[email protected]..
>
Question -
Can anyone point me at documentation that will help me understand what jarfiles
are required to allow access EJB's that are deployed in Weblogic 6.1 froma Servlet
that is running under Tomcat.
I am currently getting the following exception:
javax.naming.NoInitialContextException: Cannot instantiate class:weblogic.jndi.WLInitialContextFactory.
>
>
>
Root exception is java.lang.ClassNotFoundException:weblogic.jndi.WLInitialContextFactory
atorg.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1394)
>
>
Thanks,
Gary Bartlett

Similar Messages

Can we access Oracle 10g R2 database from Oracle 11g Client

Hi,
Can any1 tell me can we access Oracle 10g R2 database from Oracle 11g Client ? I m unable to find a Oracle Client 10g R2 for Windows 7 32 bit.
Below link is for Vista only
http://www.oracle.com/technetwork/database/10203vista-087538.html

832812 wrote:
Hi,
Can any1 tell me can we access Oracle 10g R2 database from Oracle 11g Client ? I m unable to find a Oracle Client 10g R2 for Windows 7 32 bit.
Below link is for Vista only
http://www.oracle.com/technetwork/database/10203vista-087538.html
Check this note for client/server compatibility
Client / Server / Interoperability Support Between Different Oracle Versions [ID 207303.1]

How to lookup EJBs deployed in OC4J from a standalone client application

Hello all,
I am trying to lookup an EJB deployed in OC4J 10.1.3 from a standalone client application using the following code:
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.rmi.RMIInitialContextFactory");
env.put(Context.PROVIDER_URL, "ormi://localhost:23791");
env.put(Context.SECURITY_PRINCIPAL, "jazn.com/test");
env.put(Context.SECURITY_CREDENTIALS, "test");
Context context = new InitialContext(env);
Object ref = context.lookup("ejb/Dispatch");
I get the following error:
javax.naming.NameNotFoundException: ejb/Dispatch not found
     at com.evermind.server.rmi.RMIClientContext.lookup(RMIClientContext.java:51)
     at javax.naming.InitialContext.lookup(InitialContext.java:347)
For the lookup string I've also tried:
"java:comp/env/ejb/Dispatch" and "Dispatch"
For the Context.PROVIDER_URL property I've also tried:
opmn:ormi://localhost:6003:instance
The result is always the same.
I appreciate if someone could help me with this?
Thanks,
Georgi

Georgi,
Your question has been discussed many times on this forum. Search the forum archives for "RMIInitialContextFactory".
The PROVIDER_URL needs to include the name of the deployed application that your EJB is part of, for example:
env.put(Context.PROVIDER_URL, "ormi://localhost:23791/MyApp");The lookup name has to be the value of the "ejb-name" element in your "ejb-jar.xml" descriptor file.
Your SECURITY_PRINCIPAL value looks strange to me. Personally, I use "principals" (and not JAZN), so I modified the "application.xml" file (in the "j2ee/home/config" subdirectory) to use "principals". Look for the following comment in that file:
Good Luck,
Avi.
Message was edited by:
Avi Abrami

How can I deploy a simple stateless ssion EJB and call it from a standalone client

Hi,
I'm creating s simple staless session EJB that has a method that takes a name and prints "Hello" + name. This EJB is in a package called "com.demos.mydemo.ejbs.hello"
How can I deploy this to OC4J?
How can I call it from a standalone client(no JSP, no servlets)?
In Sun's J2EE is very easy to deploy and I don't have to know any XML stuff.
can I use the .ear file created by the Sun's "deploytool" to deploy my EJB to OC4J?
This is the code at I'm using and it works on Sun's j2sdkee1.2.1:
///////// Remote /////////
package com.demos.mydemo.ejbs.hello;
import java.rmi.RemoteException;
import javax.ejb.EJBObject;
public interface Hello extends EJBObject {
public String sayHello(String name) throws RemoteException;
///////// Home //////////
package com.demos.mydemo.ejbs.hello;
import java.rmi.RemoteException;
import javax.ejb.EJBHome;
import javax.ejb.CreateException;
public interface HelloHome extends EJBHome {
public Hello create() throws CreateException, RemoteException;
/////////// Bean class ///////////
package com.demos.mydemo.ejbs.hello;
import java.rmi.RemoteException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import java.sql.Connection;
import java.sql.SQLException;
//import java.sql.PreparedStatement;
import javax.sql.DataSource;
import javax.naming.NamingException;
import javax.naming.InitialContext;
public class HelloEJB implements SessionBean {
private SessionContext context;
private Connection con;
private String dbName =
"java:comp/env/jdbc/Oracle";
public HelloEJB() {}
public void setSessionContext (SessionContext context) {
this.context = context;
public void ejbCreate() throws CreateException {
try {
makeConnection();
catch (Exception e) {
System.err.println("HelloEJB: exception in ejbCreate:" + e.getMessage());
e.printStackTrace();
throw new CreateException(e.getMessage());
public void ejbActivate() {
public void ejbPassivate() {
public void ejbRemove() {
try {
con.close();
catch (SQLException ex) {
throw new EJBException("HelloEJB: exception in ejbRemove: " + ex.getMessage());
public String sayHello(String name) {
return "Hello " + name;;
private void makeConnection() throws NamingException, SQLException {
try {
InitialContext ic = new InitialContext();
DataSource ds = (DataSource) ic.lookup(dbName);
con = ds.getConnection();
catch (Exception e) {
System.err.println("HelloEJB: exception in makeConnection:" + e.getMessage() );
e.printStackTrace();
//////////// EJB client that uses a stateless session bean
package com.demos.mydemo.ejbs.hello;
import java.io.*;
import java.sql.*;
import javax.sql.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
public class HelloClient {
public static void main(String[] args) {
try {
Context initial = new InitialContext();
Object objref = initial.lookup("HelloSession");
HelloHome home = (HelloHome)PortableRemoteObject.narrow(objref,HelloHome.class);
Hello h = home.create();
String msg = h.sayHello("John Doe");
System.out.println(msg);
//h.remove();
} catch (Exception ex) {
System.err.println("Caught an exception." );
ex.printStackTrace();
Thanks
Nabil
null

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Nabil Khalil ([email protected]):
I deployed and .ear file created by Sun's J2EE deployment tool on the OC4J. It looks that it was deployed fine -- did not get a deployment error.
When I run the client I'm getting the following error: Caught an exception.
javax.naming.CommunicationException: Can't find SerialContextProvider
at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:60)
at com.sun.enterprise.naming.SerialContext.<init>(SerialContext.java:79)
at com.sun.enterprise.naming.SerialInitContextFactory.getInitialContext(SerialInitContextFactory.java:54)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246)
at javax.naming.InitialContext.init(InitialContext.java:222)
at javax.naming.InitialContext.<init>(InitialContext.java:178)
at com.equifax.fms.ejbs.hello.HelloClient.main(HelloClient.java:18)
This makes me think that the client can't see the deployed EJB on the OC4J.
How can I fix this problem?
Thanks
Nabil
<HR></BLOCKQUOTE>
Nabil -
Your standalone client needs to obtain certain server-dependent properties. You can provide them in your code or grab them via a properties file.
For Orion - you need essentially the following setup, filling in your own information...
Define your standalone client class with "main" etc (this is orion specific - should work for 9i AS as well - perhaps there are some differences)
public class SomeClass {
try {
Properties p = new Properties();
p.setProperty("java.naming.factory.initial",
"com.evermind.server.ApplicationClientInitialContextFactory");
p.setProperty("java.naming.security.principal","server_admin_name");
p.setProperty("java.naming.security.credentials","server_password");
// THEN you can get your intitial context reference
InitialContext initial = new InitialContext (p);...........
Then go about your business.....
A good book to get is called "Professional Java Server Programming J2EE Edition" - there happens to be a reasonable amount of Orion/OCJ4 centric information since one of the authors is Karl Avedal - one of the principals behind Orion. Go out to java.sun.com and look at some of the J2EE tutorials - unfortunately a lot of it is hidden behind the J2EE Deployer, but you will get a good sense of what goes into outside-the-container standalone clients.
null

Access one rfc-session-LUW from other rfc-clients - Possible?

Hello folks.
As the topic states, I would like to know, whether it is possible for many rfc-sessions, each opened their own session ( and therefore LUW ) to share just one, with SAP board-methods.
I know, that I could create a proxy-software, which connects in ine RFC Session to SAP, and my other rfc-enabled clients then connect to
this proxy, so there would be only one rfc-session and LUW.
But assuming, I want to avoid this proxy, is there any possibility to share rfc-session-luws ?

Hello folks.
As the topic states, I would like to know, whether it is possible for many rfc-sessions, each opened their own session ( and therefore LUW ) to share just one, with SAP board-methods.
I know, that I could create a proxy-software, which connects in ine RFC Session to SAP, and my other rfc-enabled clients then connect to
this proxy, so there would be only one rfc-session and LUW.
But assuming, I want to avoid this proxy, is there any possibility to share rfc-session-luws ?

Issues in looking up a ejb deployed on glassfish from tomcat.

Hi all,
I have followed the steps mentioned in the EJB FAQ in the glassfish site and was able to lookup a remote ejb deployed in glassfish from a standalone client.
In case of standalone client, i set the appropriate jndi properties in the initial context as mentioned in the FAQ and added the 4 jars specified to the classpath of the application.
It all worked perfectly well.
But I attempted to do the same from a servlet running under tomcat.
I set the appropriate jndi properties in the intial context and added 4 jars specified in the lib directory of the war file.
But this did not turn out well and tomcat complained me with some servlet init errors.
Then i searched through the web and found this posting from you:
http://www.archivesat.com/GlassFish_Enterprise_JavaBeans_Developers/thread1399339.htm
Then i created a folder called "shared/lib" under TOMCAT_HOME directory in my machine and ran the same example. Wow.....miraculously the application ran well.
But i found that the "index.jsp" which i configured in the welcome file list does not appear now. But i was able to access the servlet without any problem. And the servlet was able to successfully lookup the ejb deployed in glassfish.
Then i thought, let me try to access the ejb from a jsf application.
Then i created a jsf application in netbeans 5.5.1 and tried to access the bean deployed in glassfish.
(Note: the jsf application runs in tomcat 5.5.17 which is bundled with netbeans)
OOPSS....
Tomcat now complains me that it cannot compile the jsp page..
This is the error i got...
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
C:\Documents and Settings\james\.netbeans\5.5.1\apache-tomcat-5.5.17_base\work\Catalina\localhost\CityExplorer-WebClient1\org\apache\jsp\index_jsp.java:7: org.apache.jsp.index_jsp is not abstract and does not override abstract method getDependants() in org.apache.jasper.runtime.JspSourceDependent
public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase
^
Generated servlet error:
C:\Documents and Settings\james\.netbeans\5.5.1\apache-tomcat-5.5.17_base\work\Catalina\localhost\CityExplorer-WebClient1\org\apache\jsp\index_jsp.java:12: getDependants() in org.apache.jsp.index_jsp cannot implement getDependants() in org.apache.jasper.runtime.JspSourceDependent; attempting to use incompatible return type
found : java.lang.Object
required: java.util.List
public Object getDependants() {
^
2 errors
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
Any ideas...
Can you please help me.
I've noticed that you were eagerly answering questions related to ejb lookup in many places.
I feel there is some potential compatability issue between tomcat and glassfish...
I request you to investigate on this and clarify the community with your response.
Thanks in advance,
James Selvakumar

Thank you guys!
I've found the answer myself.

I'm not able to connect from 9.2 client to 8.1.7.0 database through ODBC

Hi,
I'm trying to connect from ORACLE 9.2 client to 8.1.7 DATABASE. The client is on WINDOWS XP. But I'm getting connection timed out error message. What's wrong with that ?

Can you connect to the 8.1.7 database from other clients? Can you verify that the listner is up?
Can the 9.2 client connect to some database?
I'm guessing that the 8.1.7 database listner isn't up or that the tnsnames on your client isn't set up correctly.
Justin Hi Justin,
1) I am able to connect to 8.1.7 database from other clients.
2)The 9.2 client is able to connect to some other database on the network which is 8.1.6.2.
3) I have cut and pasted tnsnames.ora from the working client( but that client is 8i client ).
4) this is the first time I am using this kind of configuration i.e., trying to access 8.1.7 server from 9.2 client. I tried to create new connection through NET CONFIGURATION ASSISTANT as per the documentation but it's not working.

Access EJB 3.0 (deployed on Glassfish v3) from Tomcat 6.0.20 (Netbeans 6.8)

Hi all,
I'm a newbie (of java EE and Sun forum).
I have a problem.
I followed this tutorial: http://technology.amis.nl/blog/1368/connecting-to-an-ejb-30-remote-sessionbean-from-tomcat
using Netbeans 6.8, Tomcat 6.0.20, Glassfish v3.
The deploy of EJB on Glassfish is OK.
The deploy of WebApp on Tomcat is OK.
But when I access to the servlet using the browser I receive this exception.
javax.naming.NoInitialContextException: Cannot instantiate class: com.sun.enterprise.naming.SerialInitContextFactory [Root exception is java.lang.ClassNotFoundException: com.sun.enterprise.naming.SerialInitContextFactory]
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at web.MyServlet.processRequest(MyServlet.java:51)
at web.MyServlet.doGet(MyServlet.java:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
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.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
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:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
I know that I must copy *.jar files in Tomcat dir and App libraries (https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html#Step_3._Include_appserv-rt.jar_and), but it doesn't work.
What are my mistakes?
Thank you for your help.
Servlet code:
package web;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Properties;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import testbean.MySessionBeanRemote;
* @author Stefano
public class MyServlet extends HttpServlet {
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
props.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
props.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
try {
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet MyServlet</title>");
out.println("</head>");
out.println("<body>");
out.println(MySessionBeanRemote.class.getName());
try {
InitialContext ic = new InitialContext(props);
MySessionBeanRemote mySessionRemote = (MySessionBeanRemote) ic.lookup("pippo");
out.println(mySessionRemote.getOK());
} catch (NamingException ex) {
ex.printStackTrace();
out.println("</body>");
out.println("</html>");
} finally {
out.close();

Yes, I did.
I'm not sure about the right actions to do.
For example: the Glassfish FAQ told me to add gf-client*.jar to the Tomcat folder, not appserv-rt.jar , with v3.
I tried with both files. I restarted Tomcat, but nothing work :-(

How to access EJB deployed in JBOSS 4 from Creator

Hello.
I am trying to access EJBs deployed on JBOSS in order to develop a web app client, when I import the EJB set from Creator (sessions and entities packages in a jar file) I got the following error message....."No EJB set found in file....." .
I presume there is an kind of xml file description specific for Sun App Server missing. I would like to know if there is other way to expose EJB in creator?....maybe write a config file by hand.
I already read the tutorials related to EJB but those only use pre build EJB jars for Sun App Sserver.
Also I read all the posted about JBoos and EJB in this forum but those are pretty general.
By the way I have Delegate classes to access the EJB. How do I register my delegates in Creator in order to expose their methods?
I�ll really appreciate some light in this matter.
Thanks in advance!!!

Hi,
The below forum thread may help you :
http://swforum.sun.com/jive/thread.jspa?forumID=123&threadID=51321
Thanks,
Runa.

Issue in accessing EJB from plain java

Hi,
I am new to OAS. I am using OAS 10.1.2.
I want to access EJB which runs inside OAS, through a plain java program which runs from outside the OAS environment (standalone java program).
I am confused on what to use. RMIInitialContextFactory or ApplicationClientInitialContextFactory for the context in the java program.
what should be the provide URL ?
java.naming.provider.url","ormi://hostname:18140/
is it "ormi" or something else? what is the port number should i use. there are many ports in this OAS. i see that in the console("Ports") link.
also let me know what should i mention in the EJB xml descriptor.
Is this lookup to be done by retrieving from jndi?
pls help.
Thanks,
Sukumar
with this confusion i developed an EJB with the following details
ejb-jar.xml
<ejb-ref>
     <ejb-ref-name>ejb/testDetails</ejb-ref-name>
     <ejb-ref-type>Entity</ejb-ref-type>
<home>com.xxx.xxx.testDetailsHome</home>
<remote>com.xxx.xxx.testDetails</remote>
     </ejb-ref>
orion-ejb-jar.xml
<entity-deployment name="ejb/testDetails" location="ejb/testDetails"
Client Java program
public class testDetailsClient
public static void main(String [] args)
testDetailsClient testDetailsClient = new testDetailsClient();
try
Context context =getInitialContext();
testDetailsHome testDetailsHome = (testDetailsHome)PortableRemoteObject.narrow(context.lookup("java:comp/env/ejb/testDetails"), testDetailsHome.class);
testDetails testDetails;
catch(Throwable ex)
ex.printStackTrace();
private static Context getInitialContext() throws NamingException
Hashtable env = new Hashtable();
env.put("java.naming.factory.initial","com.evermind.server.rmi.RMIInitialContextFactory");
//env.put("java.naming.factory.initial","com.evermind.server.ApplicationClientInitialContextFactory");
env.put("java.naming.provider.url","ormi://host_name:18140/"); //23791 18140
env.put(Context.SECURITY_PRINCIPAL, "ias_admin");
env.put(Context.SECURITY_CREDENTIALS, "abc123");
InitialContext context = new InitialContext(env);
return context;
if i execute this, it says
javax.naming.NameNotFoundException: java:comp/env/ejb/testDetails not found
18140 is Application Server Control RMI port.
if i run the same code with ApplicationClientInitialContextFactory, it throws exception saying
java.lang.InstantiationException: No location specified and no suitable instance of the type 'com.testdetails.testDetails' found for the ejb-ref ejb/testDetails
     at com.evermind.server.administration.ApplicationResourceFinder.getEJBHome(ApplicationResourceFinder.java:268)
     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:324)
     at com.evermind.server.rmi.RMICallHandler.run(RMICallHandler.java:124)
     at com.evermind.server.rmi.RMICallHandler.run(RMICallHandler.java:48)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
     at java.lang.Thread.run(Thread.java:534)
javax.naming.NamingException: Error reading application-client descriptor: No location specified and no suitable instance of the type 'com.testdetails.testDetails' found for the ejb-ref ejb/testDetails
     at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext(ApplicationClientInitialContextFactory.java:161)
     at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
     at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
     at javax.naming.InitialContext.init(InitialContext.java:219)
     at javax.naming.InitialContext.<init>(InitialContext.java:195)
     at com.testdetails.testDetailsClient.getInitialContext(testDetailsClient.java:89)
     at com.testdetails.testDetailsClient.main(testDetailsClient.java:20)
pls help

Hi,
you do not have to package your EJB and PAR together! You can deploy them separately and then reference the J2EE Application from your PAR or vice versa to access it.
For instance you can access the EJB from your PAR as described here:
http://help.sap.com/saphelp_nw2004s/helpdata/en/42/9ddf20bb211d72e10000000a1553f6/frameset.htm
Or you can access a Portal application from J2EE like described here:
http://help.sap.com/saphelp_nw2004s/helpdata/en/42/9ddd0cbb211d72e10000000a1553f6/frameset.htm
Even if you package your PAR in to the same EAR with your EJB they will result in two different containers on the J2EE Engine and you will have to reference them as described in the link above to access the functionality of one component from the other.
Best regards,
Stefan Brauneis

Problems in accessing EJB from stand-alone client

Hi,
I am trying to access a EJB deployed in RI from a stand-alone client. When I run it, I got this exception:
Exception in thread "main" java.rmi.AccessException: CORBA NO_PERMISSION 9998 Ma
ybe; nested exception is:
org.omg.CORBA.NO_PERMISSION: minor code: 9998 completed: Maybe
org.omg.CORBA.NO_PERMISSION: minor code: 9998 completed: Maybe
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Unknown Source)
at com.sun.corba.ee.internal.iiop.messages.ReplyMessage_1_2.getSystemExc
eption(ReplyMessage_1_2.java:93)
at com.sun.corba.ee.internal.iiop.ClientResponseImpl.getSystemException(
ClientResponseImpl.java:108)
at com.sun.corba.ee.internal.POA.GenericPOAClientSC.invoke(GenericPOACli
entSC.java:136)
at org.omg.CORBA.portable.ObjectImpl._invoke(Unknown Source)
at TheBeanRemoteStub.test(Unknown Source)
at Client.main(Client.java:19)
The following is the code of the client:
System.setProperty(Context.SECURITY_PRINCIPAL, "achong");
System.setProperty(Context.SECURITY_CREDENTIALS, "achong");
Context context = new InitialContext(System.getProperties());
Object object = PortableRemoteObject.narrow(context.lookup("MyBean"), TheBeanHome.class);
TheBeanHome home = (TheBeanHome) object;
I have set "support client choice" while deploying the bean, and set which roles can access which methods. Any idea? Is my code is incorrect?

I have the same problem like you.
If you solve it, please give me a hint.
Thank you very much!
[email protected]

Accessing EJBs as COM objects.

Hi,
I want to access deployed EJBs from Visual Basic.
I've used Sun's COM-CAS bridge inside a VB application to access EJBs deployed in their J2EE server and it worked OK.
How do I do the same thing with EJBs in Oracle8i (8.1.5)?
Does Oracle provide a similar package to Sun's COM-CAS bridge?
Do I deploy to OAS instead of Oracle8i to achieve what I want to do?
Any help would be appreciated.
Thanks

A search of the forum using "Java COM" turned this up:
http://forum.java.sun.com/thread.jsp?forum=54&thread=106901
Try it on your machine and see what you get back. Searches are always a good thing, especially if you're new. - MOD

Access EJB from Servlet that in different archive?

<font class="mediumtxt">package kyro.ejb.session;
import javax.ejb.*;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
@Stateless(name="StandAlone")
@Remote(StandAlone.class)
public class StandAloneBean
implements StandAlone, StandAloneLocal
public StandAloneBean() {
public String sayHello() {
return "sayHello";
I want to access ejb from servlet that .war and .jar not in single .ear. I want to try that just with annotation not xml descriptor cause is easy to understand for me. I use Glassfish. But i can't lookup that ejb. How can i lookup that ejb with jndi? Can't you give me example of servlet to access that? I not use JNDI.properties, are that caused i can't access my ejb? I just thing .war and.jar in one server, are i have to used JNDI.properties. can you explain how to use JNDI.properties in servlet or separate file?
</font>

But i can't lookup that ejb. How are you trying and what exception is occurring?
How can i lookup that ejb with jndi? [https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html|https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html]
m

How to access ejb jar in ear package from other war web package?

How to access ejb in jar packed in ear package from other war web package?

Typically you would just look the EJB Home up in JNDI. If you're
looking for example code, the medrec example in WLS 8.1 or petstore has
plenty of webapps calling EJBs.
-- Rob
CottonXu wrote:
How to access ejb in jar packed in ear package from other war web package?

Accessing EJB from Java Mapping

Hi all,
I developed an EJB, deployed it to the J2EEServer via Visual Administrator. When I do a lookup from outside (NWDS) with the JNDI Name I gave it, everything works fine.
Now I have to use this EJB in a Java Mapping. I do the same --> lookup and narrow with PortableRemoteObject and so on.
But the problem is that I always get an java.lang.NoClassDefFoundError for the home interface.
Any ideas?
Thanks a lot
Olli

Hello.
Check my wiki article:
http://wiki.sdn.sap.com/wiki/display/stage/SapNetweaverProcessIntegration.CallEjb3.0methodfromJavaclassmappingPI7.1
(SapNetweaver Process Integration. Call Ejb 3.0 method from Java class mapping PI 7.1)

Access EJB's in JServer from MS COM clients

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