Head first EJB example (running client) and Sun application server 8

[Reza Rav.]

I have a question about running HFEJB client code,I've read all related threads in this forum but don't find this
kind of error, when I try to compile my Client code I issue:

java -cp .;"%CLASSPATH%;AdviceAppClient.jar" AdviceClient

or

java -cp "%CLASSPATH%;AdviceAppClient.jar" AdviceClient


I put all related file on the same folder (AdviceAppClient.jar, *.ear, AdviceClient.java, AdviceClient.class ) and I
"cd" to that folder before issue that command, and I change the "getAdvice" method name to "sayHello" BUT
I get this message:


Exception in thread "main" java.lang.NoClassDefFoundError: AdviceClient (wrong name: client/AdviceClient)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)


my OS(win XP) settings are:

CLASSPATH = C:\j2sdkee1.3\lib\j2ee.jar
J2EE_HOME = C:\j2sdkee1.3\lib
JAVA_HOME = D:\Reza\JDK\JDK(j2se)1.4.2Lib
PATH = D:\Reza\JDK\JDK(j2se)1.4.2Lib\bin;C:\j2sdkee1.3\bin

I also use Sun application server 8 2005Q1 and my bean deployed fine (I think so)

when I deploy my bean
when I face client compilation error:
NOW after 2 days:

[Peer Reynders]

Everthing works fine for me with Java 2 Platform, Enterprise Edition (J2EE) - Version 1.3.1 Release i.e. the 1.3 RI server. Settings:

CLASSPATH=.;%J2EE_HOME%\lib\j2ee.jar
J2EE_HOME=D:\etc\j2sdkee1.3.1
JAVA_HOME=D:\etc\jdk1.4.2
PATH includes %JAVA_HOME%\bin;%J2EE_HOME%\bin;

and then run with

java -cp %CLASSPATH%;AdviceAppClient.jar AdviceClient

Your J2EE_HOME may need adjusting to "C:\j2sdkee1.3" rather than "C:\j2sdkee1.3\lib". Also I can't tell if your JAVA_HOME is correct (the Lib in the name is throwing me) - but your path suggests that it is correct.

But that makes me wonder - isn't the Sun Application Server a J2EE 1.4 server - why would it be in a directory called "j2sdkee1.3"?

[Reza Rav.]

I change my J2EE_HOME as you said but still it don't work and I get that error message again

But that makes me wonder - isn't the Sun Application Server a J2EE 1.4 server - why would it be in a directory called "j2sdkee1.3"?"

I change them my self because I think maye with J2EE 1.3 this code work

-----------------------
Reza
A man without EJB

[Peer Reynders]

Originally posted by Reza Ravasizadeh:
I change them my self because I think may with J2EE 1.3 this code work

I think you may have made the problem worse. The Sun Application Server would have its own j2ee.jar and and the J2EE_HOME and CLASSPATH should be referring the its version of J2EE - after all it created your client jar. If you have an isolated machine that you can use for your preparation, uninstall the current J2EE stuff, download the 1.3 RI and follow the instructions in the book exactly. Once you get a hang of how things work together, try the Sun Application Server again - if you have to.

[Reza Rav.]

Thank for your help but I also change CLASSPATH and J2EE_HOME (refer to sun app server"J2EE 1.4" not J2EE 1.3) it still gives me that error.
I can't migrate to RI because at developement ,we use SUN ONE App server and JBOSS app server, so for testing my EJB I think SUN APP SERVER(new version of sun ONE app server) is like sun One APP Server,maybe RI 1.3 have more differences.
If you think after my explanation problem relates to app server please inform
me.
Thanx
----------------------
Reza

SCJP 1.4, OCP 9i

[Reza Rav.]

I forgot to say that:
After changing I compiled Client with new J2ee.jar , but problem remain

[Reza Rav.]

No body answer !!!
I realy need a client code for compiling my EJB on my job please help me

[Darya Akbari]

Salam Reza,

halet khoofe .

Can you post your XML deployment descriptor (ejb-jar.xml) here?

Please use the CODE tag when you send your XML for better readability

Regards,
Darya

[Darya Akbari]

Reza,

beside the deployment descriptor which we'll take a look now on it, I can only agree with Peer, that you better don't mingle between RI, JBoss and Sun App Server .

Go first through HFEJB as described, and don't try this and that. You will definitely loose time and concentration for struggling with other app servers other than described in HFEJB .

Once you have your SCBCD (which you will get sooner when you follow exactly HFEJB) you can go a step further and try other app servers. That's what I will do. We also use JBoss at our company, but I don't care for now

For now I'm waiting for your deployment descriptor

Regards,
Darya

[Reza Rav.]

salam Darya
thank you for your help, maybe you have right I also change the codes I think the pattern is the same so I can write my self an EJB, by the way here is my DD I wish it is usefull:

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.1" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee <a href="http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">" target="_blank" rel="nofollow">http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd"></a>
<display-name>Ejb1</display-name>
<enterprise-beans>
<session>
<display-name>HelloBean</display-name>
<ejb-name>HelloBean</ejb-name>
<home>tutorial.HelloHome</home>
<remote>tutorial.Hello</remote>
<ejb-class>tutorial.HelloBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
<security-identity>
<use-caller-identity/>
</security-identity>
</session>
</enterprise-beans>
</ejb-jar>  

I name my Bean HelloBean and package Tutorial.

merci

Reza

[Reza Rav.]

maybe you have right

= 100% you have right

[Darya Akbari]

Hi Reza,

I meant to post it of course with indentation like beneath:

  
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar ...>
  <display-name>Ejb1</display-name>
  <enterprise-beans>
    <session>
      <display-name>HelloBean</display-name>
      <ejb-name>HelloBean</ejb-name>
      <home>tutorial.HelloHome</home>
      <remote>tutorial.Hello</remote>
      <ejb-class>tutorial.HelloBean</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Bean</transaction-type>
      <security-identity>
        <use-caller-identity/>
      </security-identity>
    </session>
  </enterprise-beans>
</ejb-jar>

OK, first of all it seems that the deployment descriptor you posted here does not fit with the error message you posted:

originally posted by Reza Ravasizadeh:

Exception in thread "main" java.lang.NoClassDefFoundError: AdviceClient (wrong name: client/AdviceClient)

Is it possible that you are now mixing everything up . Can we agree upon that you first get the HFEJB p. 28/58 example first run? That means use the RI and exact naming as provided there.

You not even change the app servers you even change the naming provided. That is of course allowed but it makes assisting you impossible and as I said before it only slows down your progress.

Please try first the example exactly as is and tell us your result.

On the other hand the

Exception in thread "main" java.lang.NoClassDefFoundError: AdviceClient (wrong name: client/AdviceClient)

shows that you may start your client app from the wrong directoy. What's the directory you start from?

Regards,
Darya

Regards,
Darya

[Reza Rav.]

Dear Darya
maybe today is my last try then I should migrate on RI as you said before and write completly what is in HFEJB book and do exactly what is there.
I'm already in my Client (Advice) directory BUT when I don't use "." in my classpath I don't get that error :
Exception in thread "main" java.lang.NoClassDefFoundError: HelloClient
no more detail.

Now I search java forum to find something about appserver but please tell me your idea if you find anything interesting.

best regards

---------
Reza

OCP9i , SCJP 1.4

[Darya Akbari]

Hi Reza,

do you use the following in your AdviceClient.java class:

package client;

If so, one idea I have is:

1. cd to your projects folder (there where your client folder is)

2. run java -cp %CLASSPATH%;AdviceAppClient.jar client.AdviceClient

Good Luck ,
Darya

[Reza Rav.]

Thank you but it doesn't work too, I try to study some "Sun app sever" document and when I find something I issue here, if not tomorrow with RI
I hate oldies

Reza

[Reza Rav.]

Now I use RI, I can't imagine that I can't run simple bean.
again I get the same error here are my OS variables:
PATH=
C:\WINNT\system32;C:\WINNT;C:\WINNT\System32\Wbem;C:\Program Files\CatPC\Bin;C:\Program Files\CatPC\Windows\System32;C:\Program Files\CatPC\Windows\System;C:\ClearCase\bin;C:\jdk1.3.1_16\bin;D:\Reza\JDK\JDK(j2se)1.4.2Lib\bin;

CLASSPATH= C:\j2sdkee1.3\lib\j2ee.jar;D:\Reza\Myproject\EJBexample

JAVA_HOME= C:\jdk1.3.1_16

J2EE_HOME= C:\j2sdkee1.3

I loose my power to believe my self.

I also issue all of my command from 1.3

[Reza Rav.]

I find it , I put my client in a package I take it out of package (after 3 day)

[Darya Akbari]

Congratulations

Regards,
Darya