Calling ejb in the webapplication

Hi All,
I have made one stateless EJB which calculates interest wherein the amount, period and rate of interest are passed by the client to EJB now.
Can i call the EJB using JSP . can you tell me proper way of using the EJB in my webapplication
I mean should i directly try to call it from jsp OR call it from servlet.
Thanks
Yogindar

Can i call the EJB using JSP . can you tell me proper
way of using the EJB in my webapplication
I mean should i directly try to call it from jsp OR
call it from servlet.From design perspective, it is better to call through a controller layer (which would be the servlet or another JSP). But nothing prevents one from calling an EJB directly from the JSP. The main purpose of having layers is to decouple the application for ease of development.

Similar Messages

Web Sphere let me call EJB through the firewall.

Finally I found some light on my problem related to the firewall.
Seems like the web Sphere gives you the option to specify the port for the application server to communicate with the client. Can I do similar stuff with Sun Application server? Or I ask our customer to use web logic instead?
http://publib.boulder.ibm.com/infocenter/wasinfo/v4r0/topic/com.ibm.support.was.doc/html/EJB_Container/1008407.html
Let me know if this can be easily done with the application server configuration.
Message was edited by:
skoizumi2133
Message was edited by:
skoizumi2133

Configuring the IIOP listener from the administration interface is possible in Sun application serverThis let you configure the initial port when ejb client connects to the application server but not the port the as talks back to the client.

Error while calling ejb service call from BPM service

Hi,
We are using the Oracle 11.1.1.5.0
We are calling ejb service call from BPM service to update the data to Oracle database.
We are getting the below error when we executing the ejb service call from BPM Service.
<Error> <EJB> <BEA-010026> <Exception occurred du
ring commit of transaction Name=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliver
yBean.handleCallback(java.lang.String,java.lang.String,java.lang.String,int,bool
ean)],Xid=BEA1-45B91984D57960994897(30845116),Status=Rolled back. [Reason=javax.
transaction.xa.XAException: JDBC driver does not support XA, hence cannot be a p
articipant in two-phase commit. To force this participation, set the GlobalTrans
actionsProtocol attribute to LoggingLastResource (recommended) or EmulateTwoPhas
eCommit for the Data Source = EBSConnection],numRepliesOwedMe=0,numRepliesOwedOt
hers=0,seconds since begin=1,seconds left=60,XAServerResourceInfo[SOADataSource_
base_domain]=(ServerResourceInfo[SOADataSource_base_domain]=(state=rolledback,as
signed=soa_server1),xar=SOADataSource,re-Registered = false),XAServerResourceInf
o[ArCnTaskForms@EBSConnection@EBSConnection_base_domain]=(ServerResourceInfo[ArC
nTaskForms@EBSConnection@EBSConnection_base_domain]=(state=rolledback,assigned=s
oa_server1),xar=weblogic.jdbc.wrapper.JTSEmulateXAResourceImpl@fa5476,re-Registe
red = false),SCInfo[base_domain+soa_server1]=(state=rolledback),properties=({web
logic.jdbc.remote.EBSConnection=t3://192.168.10.114:8001, weblogic.transaction.n
ame=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean.handleCallback(java.la
ng.String,java.lang.String,java.lang.String,int,boolean)]}),local properties=({w
eblogic.jdbc.jta.SOADataSource=[ No XAConnection is attached to this TxInfo ]}),
OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=soa
server1+192.168.10.114:8001+basedomain+t3+, XAResources={eis/tibjms/Queue, eis
/activemq/Queue, WLStore_base_domain_BPMJMSFileStore, WLStore_base_domain__WLS_s
oa_server1, eis/fioranomq/Topic, eis/jbossmq/Queue, eis/Apps/Apps, eis/websphere
mq/Queue, eis/AQ/aqSample, WLStore_base_domain_SOAJMSFileStore, eis/aqjms/Queue,
WSATGatewayRM_soa_server1_base_domain, eis/sunmq/Queue, eis/pramati/Queue, SSCo
nnectionDS_base_domain, eis/tibjms/Topic, eis/tibjmsDirect/Queue, eis/wls/Queue,
eis/tibjmsDirect/Topic, EDNDataSource_base_domain, eis/wls/Topic, eis/aqjms/Top
ic, RL3TST_base_domain, ArCnTaskForms@EBSConnection@EBSConnection_base_domain, S
OADataSource_base_domain, WLStore_base_domain_UMSJMSFileStore_auto_2},NonXAResou
rces={})],CoordinatorURL=soa_server1+192.168.10.114:8001+base_domain+t3+): weblo
gic.transaction.RollbackException: Could not prepare resource 'ArCnTaskForms@EBS
Connection@EBSConnection_base_domain
JDBC driver does not support XA, hence cannot be a participant in two-phase comm
it. To force this participation, set the GlobalTransactionsProtocol attribute to
LoggingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source
= EBSConnection
at weblogic.transaction.internal.TransactionImpl.throwRollbackException(
TransactionImpl.java:1881)
at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(Se
rverTransactionImpl.java:345)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:239)
at weblogic.ejb.container.internal.BaseLocalObject.postInvoke1(BaseLocal
Object.java:622)
at weblogic.ejb.container.internal.BaseLocalObject.__WL_postInvokeTxRetr
y(BaseLocalObject.java:455)
at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(Sess
ionLocalMethodInvoker.java:52)
at oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean_of8dk6_ICubeDelivery
LocalBeanImpl.handleCallback(Unknown Source)
at com.collaxa.cube.engine.dispatch.message.instance.CallbackDeliveryMes
sageHandler.handle(CallbackDeliveryMessageHandler.java:47)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:140)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.transaction.xa.XAException: JDBC driver does not support XA, he
nce cannot be a participant in two-phase commit. To force this participation, se
t the GlobalTransactionsProtocol attribute to LoggingLastResource (recommended)
or EmulateTwoPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
.>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <failed to handle message
javax.transaction.xa.XAException: JDBC driver does not support XA, hence cannot
be a participant in two-phase commit. To force this participation, set the Globa
lTransactionsProtocol attribute to LoggingLastResource (recommended) or EmulateT
woPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <Failed to handle dispatch message ... exception ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:207)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
>
Could any body help on this issue.It is little bit urgent for us to resolve.
Thanks in advance.

Thanks Sudipto Desmukh,
The link is helpful me to resolve this issue.
Thanks,
Narasimha E

Calling EJB 3.0 from ALBPM

Hi,
I tried calling EJB 2.1 from ALBPM and it worked.
But I was nto able to call EJB 3.0.
Is calling EJB 3.0 supported from ALBPM 6.0.2?
If yes, how to call a business method in EJB 3.0?

Frank,
Thanks. The @LOB annotations are missing.
Create table with:
CREATE TABLE TestBlob (id number PRIMARY KEY, xmlCol BLOB);
INSERT INTO TestBlob VALUES(1, EMPTY_BLOB());
The following is the complete listing for the EJB 3 class generated from table TestBlob.
package ejb3;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
@Entity
@NamedQueries({
@NamedQuery(name = "Testblob.findAll", query = "select o from Testblob o")
public class Testblob implements Serializable {
@Id
@Column(nullable = false)
private Long id;
private byte[] xmlCol;
public Testblob() {
public Testblob(Long id) {
this.id = id;
public Long getId() {
return id;
public void setId(Long id) {
this.id = id;
public byte[] getXmlCol() {
return xmlCol;
public void setXmlCol(byte[] xmlCol) {
this.xmlCol = xmlCol;
}

EJB 2.1 session bean calling EJB 3 session bean?

I have a WL 10 (JDK 1.5/EE 5) server that has several EJB 3 stateless session beans deployed and working well. But now I need to allow a JBoss 3.2.3 (JDK 1.4) EJB 2.1 session bean make remote calls into these EJB 3 EJBs. Can this even work?
It seems to me that EJB 3 calling EJB 2 would be fine, but not in the reverse?

I have a WL 10 (JDK 1.5/EE 5) server that has several EJB 3 stateless session beans deployed and working well. But now I need to allow a JBoss 3.2.3 (JDK 1.4) EJB 2.1 session bean make remote calls into these EJB 3 EJBs. Can this even work?
It seems to me that EJB 3 calling EJB 2 would be fine, but not in the reverse?

Calling EJB with HTML via SERVLET

Hi,
I used a writen example that calls EJB from HTML via SERVLET. Example name is Bonus. The problem I have is that the HTML throw error while calling SERVLET. I dont figure out what seams to be a problem. Someone know?
I wonder if the problem is in servlet? The EJB is fine!
christian
HTML CODE:(bonus.html)
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1250"/>
<TITLE>untitled1</TITLE>
</HEAD>
<BODY BGCOLOR = "WHITE">
<BLOCKQUOTE>
<H3>Bonus Calculation</H3>
<FORM METHOD="GET" ACTION="BonusAlias">
<P>Enter social security Number:<P>
<INPUT TYPE="TEXT" NAME="SOCSEC"></INPUT>
</P>
Enter Multiplier:
<P>
<INPUT TYPE="TEXT" NAME="MULTIPLIER"></INPUT>
</P>
<INPUT TYPE="SUBMIT" VALUE="Submit">
<INPUT TYPE="RESET">
</FORM>
</BLOCKQUOTE>
</BODY>
</HTML>
SERVLET CODE:(BonusServlet.java)
package mypackage5;
import mypackage5.Calc;
import mypackage5.CalcHome;
import mypackage5.impl.CalcBean;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import java.beans.*;
public class BonusServlet extends HttpServlet {
CalcHome homecalc;
public void init(ServletConfig config) throws ServletException{
//Look up home interface
try{
//InitialContext ctx = new InitialContext();
//Object objref = ctx.lookup("Calc");
//homecalc = (CalcHome)PortableRemoteObject.narrow(objref, CalcHome.class);
Context context = new InitialContext();
CalcHome calcHome = (CalcHome)PortableRemoteObject.narrow(context.lookup("Calc"), CalcHome.class);
Calc calc;
catch (Exception NamingException) {
NamingException.printStackTrace();
public void doGet (HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String socsec = null;
int multiplier = 0;
double calc = 0.0;
PrintWriter out;
response.setContentType("text/html");
String title = "EJB Example";
out = response.getWriter();
out.println("<HTML><HEAD><TITLE>");
out.println(title);
out.println("</TITLE></HEAD><BODY>");
try{
Calc theCalculation;
//Get Multiplier and Social Security Information
String strMult = request.getParameter("MULTIPLIER");
Integer integerMult = new Integer(strMult);
multiplier = integerMult.intValue();
socsec = request.getParameter("SOCSEC");
//Calculate bonus
double bonus = 100.00;
theCalculation = homecalc.create();
calc = theCalculation.calcBonus(multiplier, bonus);
catch (Exception CreateException){
CreateException.printStackTrace();
//Display Data
out.println("<H1>Bonus Calculation</H1>");
out.println("<P>Soc Sec: " + socsec + "<P>");
out.println("<P>Multiplier: " +
multiplier + "<P>");
out.println("<P>Bonus Amount: " + calc + "<P>");
out.println("</BODY></HTML>");
out.close();
public void destroy() {
System.out.println("Destroy");

The error is that page cannot be found! When I run only the servlet it works, when I run the HTML page and enter the field throws eror that the page cannot be found!
thanks
Christian

Best way to call EJB - Servlet or Tag Library

Hi,
What is the best way to call an EJB from a JSP? We are using Weblogic 7.0(moving to 8.1 beta). WE have a form on a JSP that needs to get data from an EJB. Our flow goes from JSP --> Controller servlet or tag library -->EJB "Bean" Controller ---> EJB. The specfic EJB we need to populate drop downs and fields will be called by a bean controller. Is it better to call the bean controller using a tag library in the jsp or go to the controller servlet to get the data? If servlet is the answer, where do I lookup the EJB Home and call the create from within the servlet? Any help would be greatly appreciated!!
Thanks!

IMO, if you are following some design patterns, like the MVC framework, the best thing is to populate the model(entities that contain the business data) and call the respective getXX methods from the model on the JSP page. The reason for doing so is to keep JSP pages away from any other work other than to just display the business data contained in the respective business entities.
The model can be populated in the servlet and either set in the request or session attribute as per the requirement.
The EJB can be looked up in the servlet as and when required. I would suggest to make use of the Service Locator Pattern to do a look up for the EJB Remote Interface and accordingly make the business calls.
Hopefully this answers some of your questions.

WDP calling EJB and passing objects of classes from Java project

Hi.
We have <b>Java</b> project which contains some classes common for all projects (like xxx.Version).
We have <b>EJB</b> project which defines EJB interface using these common classes (like getVersion(String,int): xxx.Version and getCurrency(String,xxx.Version,int):xxx.Currency ).
We have <b>Web Dynpro</b> project which calls EJB:
1. Lookup is successful
2. call to getVersion is successful
3. call to getCurrency fails with <b>NoSuchMethodException</b>:
xxx.XXXObjectImpl0.getCurrency(java.lang.String, xxx.Version, int)
     at java.lang.Class.getMethod(Class.java:986)
     at com.sap.engine.services.rmi_p4.reflect.LocalInvocationHandler.invokeInternal(LocalInvocationHandler.java:51)
     at com.sap.engine.services.rmi_p4.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:53)
     at $Proxy346.getCurrency(Unknown Source)
     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.sap.engine.services.ejb.session.stateless_sp5.ObjectStubProxyImpl.invoke(ObjectStubProxyImpl.java:187)
     at $Proxy347.getCurrency(Unknown Source)
     at xxx.XXX.getCurrencyWrapper(XXXXX.java:24)
How can I set dependencies to get this running?
Thanks to all
       Volker

Hi,
Is it available in the interface you are using..
If the answer is yes.. you might have probably forgotten to deploy the EJBs ear file after making the changes..
Rebuild it.. and deploy the EJB s ear file again..
It will solve the problem.. If that also does not work,it might be a problem with the cache.. restart the server..
It should work now !
Regards
Bharathwaj

How to call ejb from Forms?

Hi.
I have an existing form (version 11.1.2.0.0) and an existing ejb. Both are running on a WebLogic server version 10.3.5.0. I want to call the ejb from the form (I know that this is not recommended, but in this case it is the only sensible solution). I have tried searching the web but I have not been able to find anything about this except some broken links.
Can somebody please explain how to do this or show me some documentation or tutorial?
Regards,
Sveinung
Edited by: SvSig on Aug 7, 2012 11:52 PM

Let's skip the fact that you are asking about an EJB and instead talk about what options are available to call out to any external app or component. Here are some of the options:
<blockquote>1. To make calls from the client machine to any web server (HTTP listener) you can use WEB.SHOW_DOCUMENT. This command simply passes a url to a browser. No return information is passed back into the running form.
2. To make calls from the client machine to almost any process on the client side, including the OS directly, you would need to create a java bean and integrate it into your form. Whether or not you get return information will depend on how you write the bean and to what you are calling.
3. To make calls from the server side (mid tier) part of a running form to an external application or component on the same mid tier you can use the HOST command. This executes a shell command. Although specific information cannot be returned (i.e. return values), you can get pass or fail results.
4. To call out to java applications on the mid tier you can import java code into your Forms application using the Forms Java Importer. This will give you a direct connection to the java application both in and out.</blockquote>
All of the above examples are explained in the Forms Builder online help. There are other options which are explained in the Forms Deployment Guide
<blockquote>http://docs.oracle.com/cd/E24269_01/doc.11120/e24477/toc.htm</blockquote>
Look specifically at chapters 6-8
<blockquote><li>6 Oracle Forms and JavaScript Integration
<li>7 Enhanced Java Support
<li>8 Working with Server Events</blockquote>
Summary
<blockquote><li>WEB.SHOW_DOCUMENT
<li>HOST
<li>Java Bean
<li>Imported Java</blockquote>

How to Call EJB from coldfusion

I need to call EJB that's created in JBoss from coldfusion.
I'm getting different errors depending on how I set the home object
and provider url.
If I prefix provider url with jnp://, then I get the
following error
The connection to the remote JNDI server on host jnp at port
1099 has failed (as have all backup hosts listed, if any) - please
verify that the server is running and the NamingService is
available
If I take the jnp out and keep just the ip address and port,
then i get the following error
null (no security manager: RMI class loader disabled).
So I'm not sure what the issue is and I haven't used this
feature before.
Here's my code

I tries to call custom EJBfrom custom component received
follwong error
ERROR [STDERR] javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException:
No ClassLoaders found for: com.mycom.myapp.action.interfaces.pm.ejb.PmFacadeRemote
(no security manager: RMI class loader disabled)]
any idea?
Thanks
YogLC

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-

Failed to call EJB from Managed Bean in user interface

Hi,
I'm very new to JDeveloper and EJB. I'm now in learning stage. I managed to find a simple example for me to get started. But I encountered errors.
This is the tutorial that I have followed -> http://www.packtpub.com/article/Building-JSF-EJB3-Applications
When we create an application, the application will consist of EJBModel and Interface (JSF View)
In my EJB Model, I have session bean name myappejb.ejb.QuestionSessionBean and one Entity bean name myappejb.entities.Question
In my User Interface, I have created a managed bean name QuestionController and I try to call QuestionSessionLocal in the EJBModel, but before I can compile, there are systaxs errors. I can't import the import javax.ejb.EJB and myappejb.ejb.QuestionSessionBean, stated not found. In other words I can't call all the beans that I have created in EJBModel from java class that I have ceated in UserInterface.
Please advise, I'm lost.
WenXin
I really confuse how exactly it works
Edited by: user8989450 on Jan 14, 2010 12:57 AM

Hi,
The problem has been solved. I found the solution, this is due to the "dependencies", must "Checked" the EJBModel.jpr.
Thanks.
Wen Xin

"HowTo" Call EJB from different EAR in WLS7

Hi,
Im trying to deploy two EAR application modules, both on same WLS7.0 SP2 server
. I have several problems to give visibility between EAR applications. There is
dependences between both applications ( I will call them FirstEAR and SecondEAR)
. A FirstEAR EJB ( FirstEAREJB) uses an EJB from the SecondEAR ( SecondEAREJB
The deployment result is a "Unable to initialize method info for remote or home
interface The error is java.lang.NoClassDefFoundError: myPackage.myPackage.SECONDEAREJB"
when deploy the FirstEAREJB. I try the deployment of both using -iiop ejbc option.
Which is the way to allow my FirstEAREJB to use SECONDEAREJB?
I have try
- to set the manifest Class-Path property for FirstEAREJB with no results.
- to set the descriptor ejb-jar properties for EJBRefs with no results.
- to set the SecondEAREJB path in the weblogic start script classpath, with no
results.
- to set the SecondEAR classpath at the ejbc -cp option for FirstEAREJB ejbc
compile, with no results again.
Is there another way to allow my FirstEAREJB to use SecondEAREJB ?

Take a look at this documentation on WebLogic Server Application
Classloading.
It might be helpful.
http://edocs.bea.com/wls/docs70/programming/classloading.html
/k
"Adolfo Cortés" <[email protected]> wrote in message
news:[email protected]..
>
Hi,
Im trying to deploy two EAR application modules, both on same WLS7.0 SP2server
I have several problems to give visibility between EAR applications.There is
dependences between both applications ( I will call them FirstEAR andSecondEAR)
A FirstEAR EJB ( FirstEAREJB) uses an EJB from the SecondEAR (SecondEAREJB
The deployment result is a "Unable to initialize method info for remote orhome
interface The error is java.lang.NoClassDefFoundError:myPackage.myPackage.SECONDEAREJB"
when deploy the FirstEAREJB. I try the deployment of both using -iiop ejbcoption.
>
Which is the way to allow my FirstEAREJB to use SECONDEAREJB?
I have try
- to set the manifest Class-Path property for FirstEAREJB with noresults.
- to set the descriptor ejb-jar properties for EJBRefs with no results.
- to set the SecondEAREJB path in the weblogic start script classpath,with no
results.
- to set the SecondEAR classpath at the ejbc -cp option for FirstEAREJBejbc
compile, with no results again.
Is there another way to allow my FirstEAREJB to use SecondEAREJB ?

Call EJB from a XI Javamapping

I have developed a simple EAR which contains a CMP with local and remote interfaces. This cmp may be successfully called using the remote-interface from a client (j2se) project. Now i like to call the same CMP from within a XI JavaMapping. In the execute method i am using the following code:
          InitialContext ctx;
          MeraConfigurationLocal configLocal = null;
          try {
               ctx = new InitialContext();
               Object obj = ctx.lookup("localejbs/mgb.ch/XIMera_EAR/MeraConfigurationBean");
               if (trace != null)
                    trace.addInfo("Got object from jndi: "+obj);
               MeraConfigurationLocalHome configHome =     (MeraConfigurationLocalHome)obj;
               if (configHome !=null) {
                    if (trace != null)
                         trace.addInfo("ConfigurationLocalHome: "+configHome);
               configLocal = configHome.create();
          } catch (Exception e) {
               throw new StreamTransformationException(e.getMessage(), e);
          int port = Integer.parseInt(
                    configLocal.ReadParam(MeraResourcePoolDispatcherService.CFG_GENERAL_LISTENER_PORT));
          if (trace != null)
               trace.addInfo("Got listenerport from localejbs/mgb.ch/XIMera_EAR/MeraConfigBean: "+port);
after calling ctx.lookup ... i got the following traceentry in xi:
<Trace level="1" type="T">*** START APPLICATION TRACE ***</Trace>
<Trace level="2" type="T">Got object from jndi: [email protected]30</Trace>
<Trace level="1" type="T">*** END APPLICATION TRACE ***</Trace>
when i try to cast this obj into a MeraConfigurationLocal the system is throwing a ClassCastException

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)

Call ejb from browsers

Hello Developers!
I deployed my ejb to OAS4081. I call that
from JDeveloper so it good. But when I try
to call from applet in IExpl5 I can't
instantiate the ORB. I've got a com.ms.security.SecurityException : oracle.oas.orb.CORBA.ORB.init
I coded the CLASSPATH(oasoorb(yoj),client,
ejbapi...) perfectly, I think.
If anybody could help, please...
Thanx!

Hi there,
          I saw someone on this group had a problem to locate proper classpath
          to call EJB from JSP. I thought if you call EJB from classpath, you are
          calling the bean. But you loss all the EJB functions. To be able to utilize
          EJB features like object pooling. You need to call it from Weblogic server
          using url/jndi, not from the jar directly.
          Any comment? Am I right?
          BTW, my question about calling EJB from JSP means calling through URL,
          not a local path.
          Thank you
          >-------------------------------------------------------------------->
          Jim wrote in message <[email protected]>...
          >Hi there,
          > Can I call EJB from JSP? Is there a particular security setting or
          >concern for Weblogic? Is there an coding example?
          >
          >Thank you
          >
          >

Calling ejb in the webapplication

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