Accessing EJBs from a servlet

Hi everyone,
I deployed my EJB component in an Oracle 8.1.7 database and I try to access it from a servlet.
If I run my servlet from JDeveloper 3.2 (Web-to-Go), it all works fine. If I run my servlet from JRun 3.01 or from Tomcat 3.2.1, I get the following exception:
javax.naming.NoInitialContextException: Need to specify class name in environmen
t or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at javax.naming.NamingException.<init>(NamingException.java:104)
at javax.naming.NoInitialContextException.<init>(NoInitialContextException.java:58)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:649)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:242)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:279)
at javax.naming.InitialContext.lookup(InitialContext.java:349)
at com.cognicase.framework.base.U0003.AbstractORB.getBean(AbstractORB.java:285)
at com.cognicase.framework.base.U0003.AbstractORB.getBean(Compiled Code)
at com.cognicase.demo.U2007BL.U2007WP_Users.lookupBean(U2007WP_Users.java:60)
at com.cognicase.framework.is.U0103.AbstractBeanWrapper.beforeBeanCall(AbstractBeanWrapper.java:121)
at com.cognicase.demo.U2007BL.U2007WP_Users.valideUser(U2007WP_Users.java:77)
at com.cognicase.demo.U2000WB.U2000MW_WorkSpace.CallEjb(Compiled Code)
at com.cognicase.demo.U2000WB.U2000MW_WorkSpace.doValidateLogin(Compiled Code)
at com.cognicase.demo.U2000WB.U2000MW_WorkSpace.processService(U2000MW_WorkSpace.java:98)
at Demo_0100_01.service(Demo_0100_01.java:128)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
at org.apache.tomcat.core.Handler.service(Compiled Code)
at org.apache.tomcat.core.ServletWrapper.service(Compiled Code)
at org.apache.tomcat.core.ContextManager.internalService(Compiled Code)
at org.apache.tomcat.core.ContextManager.service(Compiled Code)
at org.apache.tomcat.service.connector.Ajp13ConnectionHandler.processConnection(Compiled Code)
at org.apache.tomcat.service.TcpWorkerThread.runIt(Compiled Code)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
If I add my servlet classes, aurora_client.jar, mts.jar, vbjapp.jar and vbjorb.jar files to the CLASSPATH, it works fine.
The behavior is the same in JRun and Tomcat.
I don't like this solution since I have to make the CLASSPATH point to my application classes at the web server level instead of at the application context level.
Has anyone been able to solve this problem?
Thanks for your help.
null

Yes, I did. Actually, if I run my servlet in JDeveloper (Web-to-Go), it all works fine. I also extracted the code that calls the EJB from the servlet and I tested it in a small Java application, and it also works fine.
Things stop to work when I deploy my servlet in JRun or in Tomcat.
It appears that my code is correct, but the environment I try to run it is not, and I can't figure out what's wrong.
Can anyone help me?
<BLOCKQUOTE>quote:<HR>Originally posted by Sandeep Desai ([email protected]):
Have you provided the environmental settings in the servlet.
It should be :
import oracle.aurora.jndi.sess_iiop.ServiceCtx;
env.put(Context.URL_PKG_PREFIXES, "oracle.aurora.jndi");
env.put(Context.SECURITY_PRINCIPAL, username);
env.put(Context.SECURITY_CREDENTIALS, password);
env.put(Context.SECURITY_AUTHENTICATION, ServiceCtx.NON_SSL_LOGIN);
InitialContext ctx = new InitialContext(env);
Object obj = ctx.lookup("test/EJBHome");
HomeObject home = PortableRemoteObject.narrow(
obj,"HomeObject.class");
RemoteObject remote = home.create();
This should make it work!!
<HR></BLOCKQUOTE>
null

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 "Dharma" <[email protected]> wrote:
 >
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 >server.I
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 >is because, the remote home reference is not able to type casted to the"Home
 >Interface"
 >of the EJB, even if I type casted explicitly. It is creating the context
 >and able
 >to identify the EJB with the JNDI name.
 >
 >Could please help me in solving this problem.I am pasting the code here.
 >
 >Thanks in advance,
 >Dharma
 >
 >
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 > throws ServletException, IOException
 > {
 > resp.setContentType("text/html");
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 > // to do: your HTML goes here.
 >
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 > out.println("</HTML>");
 > out.close();
 > }
 >
 >
 >
 >
 >

[Fwd: Security problem accessing MBeanServer from a servlet]

Reposting to Security and Servlet newsgroups.
-------- Original Message --------
Subject: Security problem accessing MBeanServer from a servlet
Date: 10 Feb 2004 13:02:09 -0800
From: Alain <[email protected]>
Reply-To: Alain <[email protected]>
Organization: BEA NEWS SITE
Newsgroups: weblogic.developer.interest.management
Hi,
I am trying to understand how WLS 7.0 secures a call to an MBean. Got
the following
scenario:
- I am in a servlet context
- I have created and registered an MBean with the WLS MBeanServer. Fine
so far
- Within the same call I can retrieve the MBean attributes. Fine so far
- I keep the MBeanServer reference in an object global to the servlet
context
The problem:
- When I do another request and try to use the cached MBeanServer
instance to
access the MBean, I get the following error:
weblogic.management.NoAccessRuntimeException: Access not allowed for
subject:
principals=[], on ResourceType ...
Any idea?
Alain

PaulF <paulf@reply_in_newsgroup.com> wrote:
On 10 Feb 2004 13:02:09 -0800, Alain <[email protected]> wrote:
Hi,
I am trying to understand how WLS 7.0 secures a call to an MBean. Got
the following
scenario:
- I am in a servlet context
- I have created and registered an MBean with the WLS MBeanServer.Fine
so far
- Within the same call I can retrieve the MBean attributes. Fine sofar
- I keep the MBeanServer reference in an object global to the servlet
context
The problem:
- When I do another request and try to use the cached MBeanServer
instance to
access the MBean, I get the following error:
weblogic.management.NoAccessRuntimeException: Access not allowed for
subject:
principals=[], on ResourceType ...
Any idea?
AlainWhat ResourceType are you trying to access. From the Exception you're
trying to access it as an Anonymous user (principals=[]) and evidently
you're attempting to access something that is protected. I can't tell
what
from the snippet you've included.
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
Thanks Paul for your reply.
You are right. I can access my custom MBeans if I am authenticated for example
as an Administrator. My problem is that I want any application to access this
MBean authenticated or not. I am trying to find how I could grant permission to
this MBean to everyone. Still searching.
Thanks.

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} 
-steve-

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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/
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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>
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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

Security problem accessing MBeanServer from a servlet

Hi,
I am trying to understand how WLS 7.0 secures a call to an MBean. Got the following
scenario:
- I am in a servlet context
- I have created and registered an MBean with the WLS MBeanServer. Fine so far
- Within the same call I can retrieve the MBean attributes. Fine so far
- I keep the MBeanServer reference in an object global to the servlet context
The problem:
- When I do another request and try to use the cached MBeanServer instance to
access the MBean, I get the following error:
weblogic.management.NoAccessRuntimeException: Access not allowed for subject:
principals=[], on ResourceType ...
Any idea?
Alain

PaulF <paulf@reply_in_newsgroup.com> wrote:
On 10 Feb 2004 13:02:09 -0800, Alain <[email protected]> wrote:
Hi,
I am trying to understand how WLS 7.0 secures a call to an MBean. Got
the following
scenario:
- I am in a servlet context
- I have created and registered an MBean with the WLS MBeanServer.Fine
so far
- Within the same call I can retrieve the MBean attributes. Fine sofar
- I keep the MBeanServer reference in an object global to the servlet
context
The problem:
- When I do another request and try to use the cached MBeanServer
instance to
access the MBean, I get the following error:
weblogic.management.NoAccessRuntimeException: Access not allowed for
subject:
principals=[], on ResourceType ...
Any idea?
AlainWhat ResourceType are you trying to access. From the Exception you're
trying to access it as an Anonymous user (principals=[]) and evidently
you're attempting to access something that is protected. I can't tell
what
from the snippet you've included.
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
Thanks Paul for your reply.
You are right. I can access my custom MBeans if I am authenticated for example
as an Administrator. My problem is that I want any application to access this
MBean authenticated or not. I am trying to find how I could grant permission to
this MBean to everyone. Still searching.
Thanks.

Accessing EJBs from a Web project

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Thanks & merry Christmas/Happy New year to all the SDN folks!

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Previously, I had used the default & so did not enter anything in the ejb-j2ee-engine.xml, and so my ejb's showed up nicely in the Visual Administrator JNDI Registry under the localejbs tab as you would expect. The problem appears to be in the Web project - The key is that the error is "Path to object not found" rather than "Name not found". It seems to me that it knows what it is looking for & that it is valid, but doesn't know how to get there! Note that the EJB project is in the same EAR. The only reference to "Path" that I can find is in the help doc above where it says "If the name of the target enterprise bean is not unique in the enterprise application scope, you can enter the path to the JAR file that contains the bean...". I've gone through the Car Rental Application pdf (I can't find the download that contains the entire application) & followed the instructions there explicitly for referencing ejbs from the web..

Accessing EJB from Console App.

I have deployed in EJB with JNDI name "greeter" in Sun Java� System Application Server Platform Edition 8.
Then i am trying to access EJB using a console app (given below).
import javax.ejb.*;
import javax.rmi.*;
import java.util.*;
import javax.naming.*;
public class Client
public static void main(String args[])
Greeter myGreeterBean;
GreeterHome myGreeterHome;
Greeter myGreeterRemote;
Context context = null;
try
context = new javax.naming.InitialContext();
catch (Exception e)
System.out.println( "Unable To Get Initial Context");
return;
System.out.println("Got Context...");
try {
String JNDIName = "greeter";
Object objref = context.lookup(JNDIName);
System.out.println("Got Access To Object");
myGreeterHome =(GreeterHome) PortableRemoteObject.narrow(objref,
GreeterHome.class);
myGreeterRemote = myGreeterHome.create();
String theMessage = myGreeterRemote.getGreeting();
System.out.println(theMessage);
catch(Exception ex) { System.out.println( ex.getMessage()); }
} // end of main
} // end of Client
But, while i am running this program i am getting the following error:
Got Context...
Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
I don't know where i am wrong. Any idea about it ?
Thank you,
P.Srikanth.

This is what you need to modify :)
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "<<your
initial context factory>>");
env.put(Context.PROVIDER_URL, "<<JNDI provider
URL>>");
// Check documentation for exact Strings to be set.
// Pass the environment parameters to
InitialContext.
Context context = new InitialContext(env);
Angel
No this is not correct. Lookups in SUN AS works a bit differently.

Accessing an ejb from a servlet gives resource not allowed exception

hi friends,
i deployed a bean in weblogic server calling from within a servlet. this bean is used to retrieve a database connection and returns to the servlet. i have done all the resource references lookups everything and also the bean is deployed successfully, but when i run the servlet i didn't get even the println messages. it gives resource not allowed message.
here is the deployment descriptor is correct ? if anything wrong or missed, please mention and try to give me the solution.
web.xml
<web-app>
<servlet>
<servlet-name>TestConnection</servlet-name>
<display-name>TestConnection</display-name>
<servlet-class>tms.com.ejb.TestConnection</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestConnection</servlet-name>
<url-pattern>TestConnection</url-pattern>
</servlet-mapping>
<resource-ref>
<res-ref-name>tmsPool</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<env-entry>
<env-entry-name>tmsDataSource</env-entry-name>
<env-entry-value>tmsPool</env-entry-value>
<env-entry-type>java.lang.String</env-entry-type>
</env-entry>
<env-entry>
<env-entry-name>TMS_DBConnectionBean</env-entry-name>
<env-entry-value>java:comp/env/ejb/TMS_DBConnectionBean</env-entry-value>
<env-entry-type>java.lang.String</env-entry-type>
</env-entry>
<ejb-ref>
<ejb-ref-name>ejb/TMS_DBConnectionBean</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>tms.com.ejb.TMS_DBConnectionHome</home>
<remote>tms.com.ejb.TMS_DBConnection</remote>
<ejb-link>TMS_DBConnectionBean</ejb-link>
</ejb-ref>
</web-app>
Ejb jar is
<enterprise-beans>
<session>
<display-name>ConnectionBean</display-name>
<ejb-name>TMS_DBConnectionBean</ejb-name>
<home>tms.com.ejb.TMS_DBConnectionHome</home>
<remote>tms.com.ejb.TMS_DBConnection</remote>
<ejb-class>tms.com.ejb.TMS_DBConnectionBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<env-entry>
<env-entry-name>tmsDataSource</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>tmsPool</env-entry-value>
</env-entry>
<security-identity>
<description></description>
<use-caller-identity></use-caller-identity>
</security-identity>
<resource-ref>
<res-ref-name>tmsPool</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>

</resource-ref>
</session>
</enterprise-beans>
<weblogic-ejb-jar>
weblogic ejb jar file is the following content.
<weblogic-enterprise-bean>
<ejb-name>TMS_DBConnectionBean</ejb-name>
<stateless-session-descriptor>
<pool>
<max-beans-in-free-pool>1</max-beans-in-free-pool>
</pool>
</stateless-session-descriptor>
<jndi-name>TMS_DBConnectionBean</jndi-name>
</weblogic-enterprise-bean>
thanx in advance..

hi
i tried the same but still i'm getting the same problem, the value i mentioned in the servlet lookup is java:comp/env/TMS_DBConnectionBean.
then the value returned by the lookup would be java:comp/env/ejb/TMS_DBConnectionBean. right. Anyway i tried the same as u mentioned. that same problem resource not allowed is displayed in the browser. is there any other alternative to solve this?
thanks

Unable to access EJB from servlet

Hi,
I have in service method my servlet code.
Hashtable env = new Hashtable();
 env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.ApplicationInitialContextFactory");
 env.put(Context.PROVIDER_URL, "ormi://localhost/hello");
 env.put(Context.SECURITY_PRINCIPAL, "admin");
 env.put(Context.SECURITY_CREDENTIALS, "mypwd");
 Context ctx = new InitialContext(env);
 Object obj = ctx.lookup("HelloName");
 HelloHome home = (HelloHome) javax.rmi.PortableRemoteObject.narrow(obj, HelloHome.class);
 Hello hello = home.create();
this is how i have orion-ejb-jar.xml
 <enterprise-beans>
 <session-deployment name="Hello" location="HelloName" >
 </session-deployment>
 </enterprise-beans>
 ejb-jar.xml
 <session>
 <ejb-name>Hello</ejb-name>
 <home>examples.HelloHome</home>
 <remote>examples.Hello</remote>
 <local-home>examples.HelloLocalHome</local-home>
 <local>examples.HelloLocal</local>
 <ejb-class>examples.HelloBean</ejb-class>
 <session-type>Stateless</session-type>
 <transaction-type>Container</transaction-type>
 </session>
When i access the servlet i get this error.
javax.naming.NameNotFoundException: HelloName not found
 at com.evermind.server.rmi.RMIContext.lookup(RMIContext.java:149)
 at com.evermind.server.ApplicationContext.lookup(ApplicationContext.java:217)
 at com.evermind.server.ApplicationContext.lookup(ApplicationContext.java:88)
 at javax.naming.InitialContext.lookup(InitialContext.java:345)
 at examples.HelloServlet.service(Unknown Source)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:772)
 at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
 at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:782)
 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
 at java.lang.Thread.run(Thread.java:479)
Is location attribute in orion-ejb-jar.xml used to specify JNDI name? Can i get the JNDI tree showing the name mappings in oc4j? How do i correct this error?
Ravi

Ravi --
The most portable and standards oriented solution is to define an ejb-ref in the web.xml for the servlet, and then look up the name using the formal EJB UNC model.
web.xml:
<ejb-ref>
<ejb-ref-name>ejb/AppSessionFacadeHome</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>faqapp.ejb.AppSessionFacadeHome</home>
<remote>faqapp.ejb.AppSessionFacade</remote>
</ejb-ref>
servlet lookup
InitialContext ctx = new InitialContext();
Object homeObject = ctx.lookup("java:comp/env/ejb/AppSessionFacadeHome");
EJBHome ejbHome = (EJBHome)
portableRemoteObject.narrow (homeObject, AppSessionFacadeHome.class);
cheers
-steve-

How can I call EJB from JSP/Servlets in iWS?

Hi!!
My JSP/Servlets are on iWS, and I deploy EJB on iAS.
In this case, I don't know how JSP/Servlet call EJb on iAS.
I'd like to know how I can set JNDI name in JSP/Servlet on iWS.
I will thank you if you give me a simple example source using JSP/Servlet
and EJB.
Thanks in advance!!!
- Park-

Park,
Why Are you running your JSP/Servlets in iWS instead of iAS? For whatever
reason,
look at the Converter sample from iAS. You will be doing RMI/IIOP in this
case and the sample explains in detail what to do.
hth,
-robert
"SungHyun, Park" <[email protected]> wrote in message
news:9jpfmt$[email protected]..
Hi!!
My JSP/Servlets are on iWS, and I deploy EJB on iAS.
In this case, I don't know how JSP/Servlet call EJb on iAS.
I'd like to know how I can set JNDI name in JSP/Servlet on iWS.
I will thank you if you give me a simple example source using JSP/Servlet
and EJB.
Thanks in advance!!!
- Park-

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 from a servlet

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