RE: EJB Connector

by antoine.borg :: Rate this Message:

Hi,

The EJB connector should not have to be explicitly referenced on the
endpoint (at least, not according to
http://mule.mulesource.org/display/MULE2USER/EJB+Transport) unless you have
more than one connector declared. Do you?

A

Antoine Borg, Senior Consultant | Tel: +32 28 504 696
ricston Ltd., BP 2, 1180 Uccle, Brussels, BELGIUM
email: antoine.borg@... | blog: blog.ricston.com | web: ricston.com

-----Original Message-----
From: NabiL [mailto:elaomari.nabil@...]
Sent: Thursday, September 25, 2008 3:35 PM
To: user@...
Subject: RE: [mule-user] EJB Connector

Hi antoine,

Hi again,

Important :
1- I modified the SessionEJBBean and SessionEJBRemote by adding a create ()
method) otherwise nothing is called from mule, why ?

2- Mule-conf.xml : ejb transport should be declared as below otherwise it
doesn't work !!
<endpoint address="ejb://localhost:1099/SessionEJB/remote?method=sayHello"
connector="ejbConnector"/>

I exported my ejb projet into jar file and imported into mule project.

Now the mule trace looks like this :

INFO 2008-09-25 13:21:13,515 [main] org.mule.providers.ejb.EjbConnector:
Registering listener: CallEJB on endpointUri:
ejb://localhost:1099/SessionEJB/remote?method=sayHello
INFO 2008-09-25 13:21:13,875 [main]
org.mule.providers.ejb.EjbMessageReceiver: methodArgumentsList not set on
endpoint, assuming method call has no arguments ERROR 2008-09-25
13:21:13,875 [main] org.mule.MuleServer:
****************************************************************************
****
Message : Initialisation Failure: null
Type : org.mule.providers.ConnectException
Code : MULE_ERROR-84
JavaDoc :
http://mule.mulesource.org/docs/apidocs/org/mule/providers/ConnectException.
html
Object : EjbMessageReceiver{this=179d854,
receiverKey=ejb://localhost:1099,
endpoint=ejb://localhost:1099/SessionEJB/remote?method=sayHello}
****************************************************************************
****
Exception stack is:
1. null (java.lang.NullPointerException)
org.mule.providers.rmi.RmiMessageReceiver:104
(http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html
)
2. Initialisation Failure: null (org.mule.providers.ConnectException)
org.mule.providers.AbstractMessageReceiver:432
(http://mule.mulesource.org/docs/apidocs/org/mule/providers/ConnectException
.html)
****************************************************************************
****
Root Exception stack trace:
java.lang.NullPointerException
at
org.mule.providers.rmi.RmiMessageReceiver.doConnect(RmiMessageReceiver.java:
104)
at
org.mule.providers.AbstractMessageReceiver.connect(AbstractMessageReceiver.j
ava:411)
at
org.mule.providers.SingleAttemptConnectionStrategy.doConnect(SingleAttemptCo
nnectionStrategy.java:25)
at
org.mule.providers.AbstractConnectionStrategy.connect(AbstractConnectionStra
tegy.java:98)
at
org.mule.providers.AbstractMessageReceiver.connect(AbstractMessageReceiver.j
ava:403)
at
org.mule.impl.model.AbstractComponent.connectListeners(AbstractComponent.jav
a:628)
at
org.mule.impl.model.AbstractComponent.start(AbstractComponent.java:225)
at
org.mule.impl.model.AbstractComponent.start(AbstractComponent.java:204)
at org.mule.impl.model.AbstractModel.start(AbstractModel.java:323)
at org.mule.MuleManager.start(MuleManager.java:892)
at
org.mule.config.builders.MuleXmlConfigurationBuilder.configure(MuleXmlConfig
urationBuilder.java:278)
at
org.mule.config.builders.MuleXmlConfigurationBuilder.configure(MuleXmlConfig
urationBuilder.java:218)
at org.mule.MuleServer.initialize(MuleServer.java:294)
at org.mule.MuleServer.run(MuleServer.java:207)
at org.mule.MuleServer.start(MuleServer.java:195)
at org.mule.MuleServer.main(MuleServer.java:166)

****************************************************************************
****

ERROR 2008-09-25 13:21:13,906 [main] org.mule.MuleServer:
****************************************************************************
****
* A Fatal error has occurred while the server was running:

*
* null (java.lang.NullPointerException)

*
*

*
* The error is fatal, the system must shutdown

*
* Server started: 25/09/08 13:21

*
* Server shutdown: 25/09/08 13:21

*
****************************************************************************
****

antoine.borg wrote:

>
> Hello Nabil,
>
> The log file states that:
>
> java.lang.ClassNotFoundException: com.test1.model.SessionEJBRemote
>
> Presumably, this is one of your custom POJOs. Is it on the classpath?
>
> A
>
>
> Antoine Borg, Senior Consultant | Tel: +32 28 504 696 ricston Ltd., BP
> 2, 1180 Uccle, Brussels, BELGIUM
> email: antoine.borg@... | blog: blog.ricston.com | web:
> ricston.com
>
> -----Original Message-----
> From: NabiL [mailto:elaomari.nabil@...]
> Sent: Thursday, September 25, 2008 1:15 AM
> To: user@...
> Subject: RE: [mule-user] EJB Connector
>
>
> hi again,
>
> I forgot to add jbossall-client.jar to the classpath. Now the error
> message is changed as shown in the attached file
>
> http://www.nabble.com/file/p19659961/trace%2Bmule_ejb3.txt
> trace+mule_ejb3.txt
>
> why ??
>
> NabiL
>
> antoine.borg wrote:
>>
>> Hi,
>>
>> In your SessionEJBBean, desc is initialised by being set to null.
>> When is this changed? If it is not, this could be your NPE
>>
>> A
>>
>>
>> Antoine Borg, Senior Consultant | Tel: +32 28 504 696 ricston Ltd.,
>> BP 2, 1180 Uccle, Brussels, BELGIUM
>> email: antoine.borg@... | blog: blog.ricston.com | web:
>> ricston.com
>>
>> -----Original Message-----
>> From: NabiL [mailto:elaomari.nabil@...]
>> Sent: Friday, September 19, 2008 6:06 AM
>> To: user@...
>> Subject: [mule-user] EJB Connector
>>
>>
>> Hi All,
>>
>> I'm having problems (NullPointerException) invoking a SessionBean
>> from Mule.
>>
>> Environment:
>> JDK: 1.5
>> OS: Windows XP - Service Pack 2 (5.1, x86) jboss-4.2.2.GA
>>
>> The SessionBean is an EJB 3.0 one:
>>
>> package com.test1.model;
>>
>> import javax.annotation.PostConstruct; import javax.ejb.Stateful;
>> import javax.interceptor.Interceptors;
>>
>> @Stateful(name="SessionEJB")
>>
>> public class SessionEJBBean implements SessionEJBRemote ,
>> SessionEJBLocal {
>> private String desc = null;
>>
>> public SessionEJBBean() {
>>
>>
>> }
>> public void setDesc(String desc) {
>> this.desc=desc;
>> }
>>
>> public String sayHello(String name) {
>> return "hello :"+desc+" "+name;
>> }
>>
>> @PostConstruct
>> public void onConstruct(){
>> System.out.println("onConstruct est invoquée !!");
>> }
>> }
>>
>>
>> The JNDI stuff is working ok (i'm not getting NameNotFoundException
>> any more).
>> I can successfully invoke this EJB from a standalone client.
>>
>>
>> Mule-Conf.xml
>>
>> <connector name="ejbConnector"
>> className="org.mule.providers.ejb.EjbConnector">
>> <properties>
>>
>> <property name="jndiInitialFactory"
>>
>> value="org.jnp.interfaces.NamingContextFactory"/>
>> <property name="jndiUrlPkgPrefixes"
>>
>> value="org.jboss.naming:org.jnp.interfaces"/>
>> <property name="jndiProviderUrl"
>> value="jnp://localhost:1099"/>
>> <property name="securityPolicy"
>> value="./conf/security.policy"/>
>> <property name="pollingFrequency" value="20000"/>
>> </properties>
>>
>> </connector>
>>
>>
>>
>>
>> <inbound-router>
>>
>> <endpoint
>> address="ejb://localhost:1099/com/test1/SessionEJB?method=sayHello"
>> connector="ejbConnector"/>
>> </inbound-router>
>> <outbound-router>
>> <router
>> className="org.mule.routing.outbound.OutboundPassThroughRouter">
>> <endpoint address="stream://System.out"/>
>> </router>
>> </outbound-router>
>>
>>
>> ERROR 2008-09-19 03:08:39,843 [main] org.mule.MuleServer:
>> *********************************************************************
>> *
>> ******
>> ****
>> Message : Initialisation Failure: Remote EJBObject lookup
>> failed for
>>
>> 'ejb://localhost:1099/SessionEJB?method=sayHello; nested exception is:
>> java.lang.NullPointerException
>> Type : org.mule.providers.ConnectException
>> Code : MULE_ERROR-84
>> JavaDoc :
>>
>>
>

http://mule.mulesource.org/docs/apidocs/org/mule/providers/ConnectException.

>> html
>> Object : EjbMessageReceiver{this=2ba88c,
>>
>> receiverKey=ejb://localhost:1099,
>>
>> endpoint=ejb://localhost:1099/SessionEJB?method=sayHello}
>> *********************************************************************
>> *
>> ******
>> ****
>> Exception stack is:
>> 1. null (java.lang.NullPointerException)
>> org.mule.providers.ejb.EjbConnector:48
>>
>> (http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerExcepti
>> o
>> n.html
>> )
>> 2. Remote EJBObject lookup failed for
>>
>> 'ejb://localhost:1099/SessionEJB?method=sayHello; nested exception is:
>> java.lang.NullPointerException (java.rmi.RemoteException)
>> org.mule.providers.ejb.EjbConnector:52
>>
>> (http://java.sun.com/j2se/1.5.0/docs/api/java/rmi/RemoteException.htm
>> l
>> ) 3. Initialisation Failure: Remote EJBObject lookup failed for
>>
>> 'ejb://localhost:1099/SessionEJB?method=sayHello; nested exception is:
>> java.lang.NullPointerException (org.mule.providers.ConnectException)
>> org.mule.providers.AbstractMessageReceiver:432
>>
>> (http://mule.mulesource.org/docs/apidocs/org/mule/providers/ConnectEx
>> c
>> eption
>> .html)
>> *********************************************************************
>> *
>> ******
>> ****
>> Root Exception stack trace:
>> java.lang.NullPointerException
>> at
>>
>> org.mule.providers.ejb.EjbConnector.getRemoteObject(EjbConnector.java:48)
>> at
>>
>>
>

org.mule.providers.rmi.RmiMessageReceiver.doConnect(RmiMessageReceiver.java:

>> 86)
>> at
>>
>> org.mule.providers.AbstractMessageReceiver.connect(AbstractMessageRec
>> e
>> iver.j
>> ava:411
>>
>> )
>> at
>>
>> org.mule.providers.SingleAttemptConnectionStrategy.doConnect(SingleAt
>> t
>> emptCo
>> nnectio
>>
>> nStrategy.java:25)
>> at
>>
>> org.mule.providers.AbstractConnectionStrategy.connect(AbstractConnect
>> i
>> onStra
>> tegy.ja
>>
>> va:98)
>> at
>>
>> org.mule.providers.AbstractMessageReceiver.connect(AbstractMessageRec
>> e
>> iver.j
>> ava:403
>>
>> )
>> at
>>
>> org.mule.impl.model.AbstractComponent.connectListeners(AbstractCompon
>> e
>> nt.jav
>> a:628)
>> at
>> org.mule.impl.model.AbstractComponent.start(AbstractComponent.java:225)
>> at
>> org.mule.impl.model.AbstractComponent.start(AbstractComponent.java:204)
>> at org.mule.impl.model.AbstractModel.start(AbstractModel.java:323)
>> at org.mule.MuleManager.start(MuleManager.java:892)
>> at
>>
>> org.mule.config.builders.MuleXmlConfigurationBuilder.configure(MuleXm
>> l
>> Config
>> uration
>>
>> Builder.java:278)
>> at
>>
>> org.mule.config.builders.MuleXmlConfigurationBuilder.configure(MuleXm
>> l
>> Config
>> uration
>>
>> Builder.java:218)
>> at org.mule.MuleServer.initialize(MuleServer.java:294)
>> at org.mule.MuleServer.run(MuleServer.java:207)
>> at org.mule.MuleServer.start(MuleServer.java:195)
>> at org.mule.MuleServer.main(MuleServer.java:166)
>>
>> *********************************************************************
>> *
>> ******
>> ****
>>
>> ERROR 2008-09-19 03:08:39,859 [main] org.mule.MuleServer:
>> *********************************************************************
>> *
>> ******
>> ****
>> * A Fatal error has occurred while the server was running:
>>
>> *
>> * null (java.lang.NullPointerException)
>>
>> *
>> *
>>
>> *
>> * The error is fatal, the system must shutdown
>>
>> *
>> * Server started: 19/09/08 03:08
>>
>> *
>> * Server shutdown: 19/09/08 03:08
>>
>> *
>> *********************************************************************
>> *
>> ******
>> ****
>>
>> Who can help me asap.
>>
>> Thanks in advance
>> Nabil
>>
>>
>> --
>> View this message in context:
>> http://www.nabble.com/EJB-Connector-tp19565911p19565911.html
>> Sent from the Mule - User mailing list archive at Nabble.com.
>>
>>
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>
> --
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> Sent from the Mule - User mailing list archive at Nabble.com.
>
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