How to lookup an EJB from JSP on a Remote Server in JES2005Q4

Hi,
I am having two different domain (domain1,domain2) respectvely. My ABC.ear j2eee application is deployed on domain2 and its iiop port is 33703.In domain1 i have xyz.war (web application) and it's IIOP port is 3700 .In xyz.war i am having CallEJB.jsp file.In this Jsp file i want to lookup an EJB Service called PaymentEJB(JNDI Name is ejb/PaymentEJB).
The code is below
InitialContext context=new InitialContext();
Object objRef=context.lookup("corbaname:iiop:andaman:33703#ejb/PaymentEJB");
I am getting the following error.
[#|2005-12-14T16:42:03.422+0530|SEVERE|sun-appserver-pe8.1_02|javax.enterprise.resource.corba._DEFAULT_.rpc.transport|_ThreadID=11;|"IOP00410216: (COMM_FAILURE) Unable to create IIOP listener on the specified host/port: all interfaces/3700"
org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 216 completed: No
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.createListenerFailed(ORBUtilSystemException.java:2661)
My doubt is
1.While starting domain1 and domain2 iiop listeners are started on the port 3700 and 33703.in that case why EJB lookup tries to create listener on one more time.
2.I am looking the 33703 port only.but it tries to create port on 3700 why?
3.It was working till JES2005Q1.Is there any patch i need to install? or i need to change anything in my code.
I am frustrated with this error for past one week.I will be happy if some body will give me the peace of mind(thru some solution).

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There is a stateless session bean in a1 called ejb1.
And there is also a stateless session bean ejb2 in app2.
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<?xml version="1.0"?>
<!DOCTYPE application-client PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application Client 1.2//EN" "http://java.sun.com/j2ee/dtds/application-client_1_2.dtd">
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But how to construct the application-client.xml so that it can suitable for 2 different ejb in different application? Do I miss something in doing it?
Kindly advice!
Queeny Tang

Hi Debabrata Panda,
I did add parent in web.xml, but it still encounter
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In my program, a jsp in app2 will lookup ejb1 of app1. In the same way, a jsp in app1 will lookup ejb2 of app2.
if I declare in server.xml
<application name="app2" path="../applications/app2.ear" parent="app1" auto-start="true" />
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ejbs.
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Thanks in advance!
Yours Queeny

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onclick can empty the service options field
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Hi Christian,
A few questions to clarify where the cause of the problem might be:
1. When you run the JSP app in JDeveloper, are you connecting to the remotely deployed app module, or the local one in your workspace?
2. In your JSP project, there is an appmodule.properties file. This file should specify the connection mode to use to connect to your EJB (ConnectMode=EJB), and should be deployed to a directory on your webserver's classpath, along with the connections.properties file. If the appmodule.properties file contains the wrong connectmode setting, or is not on the classpath for the webserver, this might be the cause.
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To put it in "idiot" terms:
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In that case you can refer to the following documents:
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Accessing persistence functionality in EJB 3.0: http://help.sap.com/saphelp_nwce711/helpdata/en/46/307a2a50094f09e10000000a114a6b/frameset.htm
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I am unable to call an EJB from jsp, unless I put the actuall classes of
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          at
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          at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:191)
          at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:148)
          at
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          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:208)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:246)
          at
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          at
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          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          where result.jsp is the jsp page calling the EJB. I did an import of the
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          like i said, it works if I put the bean classes in the classpath. But is
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          if I have these in the exploded format, do I need to put anything in the
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          <?xml version="1.0"?>
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          <display-name>My Web Application</display-name>
          <description>none</description>
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          <ejb-ref-name>MyWeb</ejb-ref-name>
          <ejb-ref-type>Session</ejb-ref-type>
          <home>com.blah.ejb.myweb.WyWebHome</home>
          <remote>com.blah.ejb.myweb.MyWeb</remote>
          </ejb-ref>
          </web-app>
          weblogic.xml:
          <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web
          Application 6.0//EN"
          "http://www.bea.com/servers/wls600/dtd/weblogic-web-jar.dtd">
          <weblogic-web-app>
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          <jsp-param>
          <param-name>
          pageCheckSeconds
          </param-name>
          <param-value>
          1
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          </jsp-param>
          <jsp-param>
          <param-name>
          verbose
          </param-name>
          <param-value>
          true
          </param-value>
          </jsp-param>
          <jsp-param>
          <param-name>compileCommand</param-name>
          <param-value>/local/apps/jdk1.3.0_02/bin/javac</param-value>
          </jsp-param>
          </jsp-descriptor>
          <reference-descriptor>
          <ejb-reference-description>
          <ejb-ref-name>MyWeb</ejb-ref-name>
          <jndi-name>MyWeb</jndi-name>
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          </reference-descriptor>
          </weblogic-web-app>
          thanks,
          Gary


Did you package your JSPs in a WAR and your EJBs in a JAR and package the
          WAR and JAR in an EAR? That is how to do it in 6.0. Works well.
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          +1.617.623.5782
          WebLogic Consulting Available
          "gmo" <[email protected]> wrote in message
          news:[email protected]...
          > I am unable to call an EJB from jsp, unless I put the actuall classes of
          > the EJB into the classpath. Is this the right way to do it?
          > The exception is:
          > Servlet failed with ServletException
          > javax.servlet.ServletException: Servlet class: 'jsp_servlet._result'
          > could not be loaded - the requested class wasn't found in the
          > classpath:
          >
          '/local/apps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_d
          elete/wl_local_comp34107.war:/local/apps/bea/wlserver6.0/./config/gmodomain/
          applications/.wl_temp_do_not_delete/WEB-INF/_tmp_war_gmo_gmo_webwar:/local/a
          pps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_delete/WEB
          -INF/_tmp_war_gmo_gmo_webwar'
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
          a:532)
          >
          > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:191)
          >
          > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:148)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:30
          6)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :208)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :246)
          >
          > at
          >
          weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
          ntext.java:1265)
          >
          > at
          >
          weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
          :1622)
          >
          > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          >
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >
          > where result.jsp is the jsp page calling the EJB. I did an import of the
          > EJB classes in the jsp.
          > like i said, it works if I put the bean classes in the classpath. But is
          > it right?
          > if I have these in the exploded format, do I need to put anything in the
          > application web.xml under:
          > wlserver6.0/config/gmodomain/applications/DefaultWebApp_gmo/WEB-INF ?
          >
          > redhat 6.2, wl6.0sp1
          >
          > here are the xml files:
          > web.xml:
          >
          > <?xml version="1.0"?>
          > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
          > 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
          >
          > 
          >
          > <web-app>
          > <display-name>My Web Application</display-name>
          > <description>none</description>
          > <ejb-ref>
          > <ejb-ref-name>MyWeb</ejb-ref-name>
          > <ejb-ref-type>Session</ejb-ref-type>
          > <home>com.blah.ejb.myweb.WyWebHome</home>
          > <remote>com.blah.ejb.myweb.MyWeb</remote>
          > </ejb-ref>
          > </web-app>
          >
          > weblogic.xml:
          >
          > <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web
          > Application 6.0//EN"
          > "http://www.bea.com/servers/wls600/dtd/weblogic-web-jar.dtd">
          > <weblogic-web-app>
          > <jsp-descriptor>
          > <jsp-param>
          > <param-name>
          > pageCheckSeconds
          > </param-name>
          > <param-value>
          > 1
          > </param-value>
          > </jsp-param>
          > <jsp-param>
          > <param-name>
          > verbose
          > </param-name>
          > <param-value>
          > true
          > </param-value>
          > </jsp-param>
          > <jsp-param>
          > <param-name>compileCommand</param-name>
          > <param-value>/local/apps/jdk1.3.0_02/bin/javac</param-value>
          > </jsp-param>
          > </jsp-descriptor>
          > <reference-descriptor>
          > <ejb-reference-description>
          > <ejb-ref-name>MyWeb</ejb-ref-name>
          > <jndi-name>MyWeb</jndi-name>
          > </ejb-reference-description>
          > </reference-descriptor>
          > </weblogic-web-app>
          >
          > thanks,
          >
          > Gary
          >
          >

How to Acces an EJB from a portal

I have a problem. I can't access EJB's from the portal.
I downloaded the tutorial "How to Access an EJB from a Portal component". The result was the following error
Can someone tell my how to access EJB's from a portal component. It is not needed to do this all in one EAR.
One PAR and a other EAR is also fine.
I use the WAS 6.4 SP9
Starting Deployment of MyEJBPackage
Aborted: development component 'MyEJBPackage'/'sap.com'/'localhost'/'2005.01.28.09.32.48':
Caught exception during application deployment from SAP J2EE Engine's deploy service:
com.sap.engine.services.rmi_p4.MarshalException: Exception when trying to read the original exception.; nested exception is: java.lang.ClassNotFoundException: com.sapportals.portal.prt.runtime.PortalException
(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.performAction(DeploymentActionTypes).REMEXC)
Deployment of MyEJBPackage finished with Error (Duration 612133 ms)

See Accesss an EJB from a portal component

How to load java class from jsp page?

hi all!
Does anyone know how to load java class from jsp page?
I try to load java class from jsp page.
Is it possible to load java class fom jsp page?
thanks and have a good day!

What I mean is How to load/open java class file from jsp page?
I think we can open Applet from jsp page by using
<applet code=helloApplet.class width=100 height=100>
</applet>
but, how to open java class which is an application made by Frame?
thanks and have a good day

HOW can I call EJB with JSP?

Hi, I'm working with JSP and want to include some EJB. I dont know how can I access EJB through JSP. I dont know if I use the right code in JSP for calling EJB. Did someone know how to use that? Can someone tell me if is the right code in JSP in my example?
Thanks, Kristjan
THIS IS THE JSP: (useejb.jsp)
<%@ taglib uri="http://xmlns.oracle.com/j2ee/jsp/tld/ojsp/ejbtaglib.tld" prefix="EJB" %>
<%@ page import="mypackage1.MySessionEJB" %>
<%@ page import="mypackage1.MySessionEJBHome" %>
<%@ page import="mypackage1.impl.MySessionEJBBean" %>
<HTML>
<head><TITLE>USEBEAN</TITLE></head>
<body>
<EJB:useHome id="mySessionEJBHome" type="mypackage1.MySessionEJBHome" location="java:comp/env/ejb/mySessionEJB" local="false" />
<EJB:useBean id="mySessionEJBBean" type="mypackage1.impl.MySessionEJBBean" local="false">
<EJB:createBean instance="<%=mySessionEJBHome.create() %>" />
</EJB:useBean>
<%= mySessionEJBBean.calc() %>
</body>
</html>
THIS IS THE EJB CODE:(MySessionEJBBean.java)
package mypackage1.impl;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import java.lang.String.*;
public class MySessionEJBBean implements SessionBean
public void ejbCreate(){}
public void ejbActivate(){}
public void ejbPassivate(){}
public void ejbRemove(){}
public void setSessionContext(SessionContext ctx){}
public String calc(String value)
return value + value;
public String zanka(String x)
return x;
(MySessionEJB.java)
package mypackage1;
import javax.ejb.EJBObject;
import java.rmi.RemoteException;
public interface MySessionEJB extends EJBObject
public String calc(String value) throws RemoteException;
String zanka(String x) throws RemoteException;
(MySessionEJBHome.java)
package mypackage1;
import javax.ejb.EJBHome;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
public interface MySessionEJBHome extends EJBHome
public MySessionEJB create() throws RemoteException, CreateException;
}

You might want to look at using a Java Bean wrapper, this can be done automically using WebSphere. It creates what is called an access bean which the JSP imports.
HTH,
J.Clancey

How a process is launched from JSP in IdM 7.0?

I am trying to find out how to launch a process from JSP page so that I can add my own workflow to the JSP page or even creating my own JSP pags launching my own process.
I found an exmpale in the application:
C:\tomcat\webapps\idm\user\processLaunch.jsp
which is able to launch the following processes defined in System Configuration Object:
<Attribute name='endUserUpdateGroups' value='End User Update Groups'/>
<Attribute name='endUserUpdateMyGroups' value='End User Update My Groups'/>
<Attribute name='endUserUpdateMyResources' value='End User Update My Resources'/>
<Attribute name='endUserUpdateMyRoles' value='End User Update My Roles'/>
<Attribute name='endUserUpdateResources' value='End User Update Resources'/>
<Attribute name='endUserUpdateRoles' value='End User Update Roles'/>
In the jsp code, I see the following line:
<jsp:useBean id="form" scope="page"
class="com.waveset.ui.web.task.TaskLaunchForm"/>
However I do not see where the process name is referenced, then at the end, I see:
String url = form.process(requestState);
which seems to load the process at last.
Can anyone explain to me?
Thank you.

Your response confirmed what I guessed. I will try to launch my own workflow like that. Did you do something similar before?
It's just there is no explicit code passing the id value to the object, I do not see how the jsp will be able to load the process. I am just afraid I missed something that's handled behind the scene. Then when I copy the way they do it, my customized process is not known by the system, then of course I will fail.
I will keep you posted if that works.

How can I use EJB component on Weblogic 8.1 server ?

hi,dear sir:
How can I use EJB component on Weblogic 8.1 server ?
It need client jar to invoke ejb,but what will I to do for this jar file? what does it contain? format ?
If my EJB module contain 100 session bean and 50 Entity bean,but I want invoke 20 session beans in my module, how can I to do?
thank you...

Hi,
This forum is exclusively for Creator. please post this on appropriate forum
regards
CreatorTeam

How to access an EJB from a web application deployed in the same server

Hey All,
I deployed an EJB named EventServerBean to Sun Application Server 9.0, and put the client side jar file (named eventserver.jar which is generated by Sun Application Server) to C:\Sun\AppServer\lib. Now, I have a web application which is a simple jave file -- lookup EventServer EJB and invoke a remote method in this EJB. However, the web application always throws an exception "java.lang.NoClassDefFoundError: eventserver/EventServerRemoteHome"
Here is my java class that access the ejb:
public class Post_Event {
    public HashMap<String, String> getEventInfo(String event_name, String site) {
        System.out.println("Post_Event, the class path: " + System.getProperty("java.class.path"));
        System.out.println("Post_Event, user.dir: " + System.getProperty("user.dir"));
        System.out.println("Post_Event, java.library.path: " + System.getProperty("java.library.path"));
        HashMap<String, String> result = null;
        EventServerRemote remote = null;
        StringTokenizer st, st2;
        // here get the event information from host
        try {
            String lookupStr = "corbaname:iiop:" + site + ":3700#ejb/EventServerBean";
            InitialContext initialContext = new InitialContext();
            EventServerRemoteHome remoteHome = (EventServerRemoteHome) javax.rmi.PortableRemoteObject.narrow(initialContext.lookup(lookupStr), EventServerRemoteHome.class);
            if (remoteHome != null) {
                remote = remoteHome.create();
        } catch (javax.naming.NamingException ne) {
            ne.printStackTrace();
            return null;
        } catch (javax.ejb.CreateException ce) {
            ce.printStackTrace();
            return null;
        } catch (java.rmi.RemoteException re) {
            re.printStackTrace();
            return null;
        } catch (java.io.IOException ioe) {
            ioe.printStackTrace();
            return null;
        System.out.println("look up remote event server successfully.");
     result = remote.getEvent(event_name);
        return result;
    } I output the class path in this java file, and the class path DOES include the path C:\Sun\AppServer\lib where eventserver\EventServerRemoteHome.class is.
Does anyone know why it happens? Why a java class can't find a class that is in its class path?
appreciate any help!

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Wael Abbas ([email protected]):
Thank you for your great topic.
I think you need to copy the snippet code and past it to every application, applet, servlet or JSP every time you need to use your EJB.
Its better to include this snippet code in a simple JavaBean and use this bean as a bridge to your EJB, you may include a connect method in your JavaBean or but the connection code in the constructor and include a setters, getters and other methods to encapsulate your EJB methods.
You can use your JavaBean in any application, applet, servlet or JSP just create an object form it and call its methods.
Its just an idea
I hope it will be useful.
<HR></BLOCKQUOTE>
null

How to call session EJB from EP service in EP 7.0?

Hi,
I am trying to invoke stateless session EJB from my portal service. Both the service and EJB are deployed on the same server which is EP 7.0.
I found [this|http://help.sap.com/saphelp_nw70/helpdata/EN/42/9ddcc9bb211d72e10000000a1553f6/frameset.htm] in SAP help and tried to implement it (added PrivateSharingReference to portalapp.xml and implemented the code), but everytime I try to lookup the session bean and cast it using P4ObjectBroker.narrow() method, I get java.lang.ClassCastException. The object found in JNDI and my portal service have different classloaders, so I suppose this is the problem, but I don't know how to handle it...
Can anyone please help me?
Regards,
Tomas

Hi Satya ,
please go though following blog for used DC concept.
Componentization of Webdynpro Application in CE7.1
In netweaver 7.1 interface controler is abstract and component controller is implementing interface controller so the context data and methods have to be implemented by component controller

How to lookup an EJB from JSP on a Remote Server in JES2005Q4

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