Server site stack on client site calling EJB's methods

Dear colleagues,
I have the following method on EJB site
public boolean testUncheckedException(String msg)
throws RemoteException
boolean result = true;
char ch = msg.charAt(1000);
return result;
and I have the following
try
{ returnValue = errorhandling_EJBTestRemoteObject.testUncheckedException("Force
Error");
catch(Exception e)
CFCErrorHandler.handle(e);
} return returnValue;
This throws an exception java.lang.StringIndexOutOfBoundsException: String index
out of range: 1000 that is wrapped to RemoteException as detail property.
My problem is that I am getting a server site stack back only on one machine (my
local PC with WebLogic 6.0 sp2). Any other machine around does not return the
stack back with the same software installed.
Any idea what could be the problem
Yevgeny

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hi chidambaresh,
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Hi
I was using the session bean.Your suggestion helped me a lot.Perfect.
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Hi
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Hi,
I will check out the link, thank you. I am a newbie to java and oracle, so any help would be great. i wasnt sure which bits of code would be really helpfull, so i just put most of it in, sorry if it is too much info.
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========
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What server you are using?
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     public static void main(String[] args) {
          try {
               Context ctx = getInitialContext();
               Object obj = ctx.lookup("PersonSessionRemote/remote");
            PersonRemote pr=(PersonRemote)PortableRemoteObject.narrow(obj, PersonRemote.class);
            Person p=new Person();
            p.setName("david");
            pr.addPerson(p);
            pr.findPerson(1);
               // System.out.print(br.find(pk).getAuthor_name());
          } catch (Exception ex) {
               ex.printStackTrace();
     private static Context getInitialContext() throws NamingException {
          Properties p = new Properties();
          p.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.NamingContextFactory");
          p.setProperty(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
          p.setProperty(Context.PROVIDER_URL, "jnp://localhost:1099");
          return new InitialContext(p);
}Person is ant @Entity and PersonRemote is remote interfaces, to connect database you have to make datasource file at jboss-4.2.3.GA\server\default\deploy
simle mysql-ds.xml looks like this:
datasources>
   <local-tx-datasource>
      <jndi-name>some name</jndi-name>
      <connection-url>jdbc:mysql://localhost:3306/dbname</connection-url>
      <driver-class>com.mysql.jdbc.Driver</driver-class>
      <user-name>root</user-name>
      <password>root password</password>
      <min-pool-size>5</min-pool-size>
      <max-pool-size>100</max-pool-size>
      <idle-timeout-minutes>15</idle-timeout-minutes>
      <exception-sorter-class-name>com.mysql.jdbc.integration.jboss.ExtendedMysqlExceptionSorter</exception-sorter-class-name>
      <valid-connection-checker-class-name>com.mysql.jdbc.integration.jboss.MysqlValidConnectionChecker</valid-connection-checker-class-name>
   </local-tx-datasource>
</datasources>also at resources/META-INF directory you must have persistence.xml like this
<persistence>
     <persistence-unit name="SimpleEjb">
          <jta-data-source>java:/some name</jta-data-source>
          <properties>
               <property name="hibernate.hbm2ddl.auto" value="update" />
               <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
               <property name="hibernate.show_sql" value="true"/>
               <property name="hibernate.format_sql" value="true"/>
          </properties>
     </persistence-unit>
</persistence>

Trouble with deploying a standlone Java app/client that calls an EJB

Hey guys,
I am well aware that there are many topics that are quite similar to this topic that I am posting but the fact of the matter is I have failed to procure a satisfactory answer.
So a bit of background about the environment I am using. I am using Netbeans 5.5 development build, today's version, JDK 6 Build 77, and Sun Application Server 8.2 to create, run and learn J2EE 1.4 based apps following the Sun J2EE 1.4 tutorial pdf and the Netbeans 4.1 tutorial pdf which I realize is a bit outdated but it gets the job done for the most part.
I have satisfactorily created and built the Converter application as described in the above mentioned tutorial pdfs. For memory refreshment purposes, it is the simple session bean example where it is stateless and remote and has 2 business methods:
dollarToYen(BigDecimal dollar)
yenToEuro(BigDecimal yen)So I have this EJB being called, for learning purposes, by both a JSP and a Servlet as well as a standalone Java client. Now since the development machine is where I am deploying and running the enterprise application, everything works without a hitch. Once I have the Application server up and running I am able to access and execute the EJB's methods through JSP and Servlet even from remote machines on my home LAN. I realize that since the JSP and Servlet are in the same application context as that of the EJB I am not requiring the client jar which is where my confusion starts coming in. I know I need the client jar when I try to run the standalone java client from a different machine because it simply cannot access the EJB I have written.
Now I found this link below and I read it and sorta understand it. I also found that under C:\AppServer\domains\domain1\applications\j2eeapps\ConverterApp I see a file called ConverterAppClient.jar. Is this the so called client jar? If so how do I go about using it?
Before I end my rather long post, let me detail the steps I used to create the standlone Java client. I selected java application in the new menu of Netbeans and gave it the name ConverterClient and the IDE then proceeded to create a main class for me with a main method where I stuck in the following code:
try
            Context c = new InitialContext();
            Object remote = c.lookup("ejb/ConverterBean");
            ConverterRemoteHome rv = (ConverterRemoteHome) PortableRemoteObject.narrow(remote, ConverterRemoteHome.class);
            ConverterRemote converter = rv.create();
            BigDecimal param = new BigDecimal(100);
            System.out.println(param + " Dollars are " + converter.dollarToYen(param) + " Yen.");
            System.out.println(param + " Yen are " + converter.yenToEuro(param) + " Euro.");
        catch (RemoteException ex)
            ex.printStackTrace();
        catch (ClassCastException ex)
            ex.printStackTrace();
        catch (NamingException ex)
            ex.printStackTrace();
        catch (CreateException ex)
            ex.printStackTrace();
    }and that code works when I call it from the same machine that the Application Server is running with the EJB deployed. I also added in the classpath of the client application, the j2ee.jar and the other appserv-rt.jar as well. Have I missed anything?
I even tried using the deploytool but to no avail as all it generated for me was the same jar file that I found underneath the Application server application directory as I mentioned earlier.
If anyone is willing to help me, I will upload my Netbeans project files and all you have to do is open it through Netbeans 5.5 to recreate the exact scenario I am talking about.
Thanks in advance. I apologize for the rather long post but I thought it would be best to provide as much details as was possible.
Cheers,
Surya

hI,
Pls, I'm happy to know u r using application server. I have just started reading enterprise bean.
But I could not set the path and some other configurations for it to start working.
Pls, I would be most grateful, if u could put me through on how to configure application server.
Right now, I'm in the state of dilemma due to the insufficient knowledge in it.
My email is [email protected]
Remain blessed

Server site stack on client site calling EJB's methods

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