Connect Java Application with a Session Bean

Question

Hi,
my Problem is following:
I have session bean (stateless) and i try to write i client for it!
I get always the same error message, when i call the java ClientApplication from the Command line:
java -jar Betting_server.jar BettingServer
StartBetting Server
Part1
Caught an unexpected exception!
javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory. Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:198)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:217)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:42)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:649)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
at at.siemens.mma.iap.betting.server.CreateQRunTimer$RemindTask.run(CreateQRunTimer.java:47)
at java.util.TimerThread.mainLoop(Timer.java:432)
at java.util.TimerThread.run(Timer.java:382)
My configuration:
jboss-3.2.1_tomcat-4.1.24
j2sdkee1.3.1
j2sdk1.4.1_02
My Client Class:
package betting.server;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.util.*;
import betting.ejb.*;
public class CreateQRunTimer {
     Timer timer;
     public CreateQRunTimer() {
          timer = new Timer();
          timer.schedule(new RemindTask(),
                    0, //initial delay
                    1*60*1000); //subsequent rate 30 minutes
     class RemindTask extends TimerTask {
          public void run() {
               String logicalBettingBeanName = "MyBetting";
               Betting bet;
               BettingHome bethome;
               try
                    System.out.println("Part1");
                    Properties props = new Properties();
                         props.put("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
                         props.put("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
                         props.put("java.naming.provider.url", "localhost:1099");
                    InitialContext ic = new InitialContext(props);
                    System.out.println("Part2");
                    Object objref = ic.lookup(logicalBettingBeanName);
                    System.out.println("Part3");
                    bethome =(BettingHome)PortableRemoteObject.narrow(objref,BettingHome.class);
                    bet = bethome.create();
                    long qRunMagicNum = bet.DB_CreateQRun();
                    if(bet.CreateConfigurationFileQuery(qRunMagicNum) == false)
                         // failed
                         System.out.print("CreateConfigFileQuery failed");
                    else
                         bet.TransferXMLFiles("tvbetqrun.conf",0);
                         System.out.print("CreateConfigFileQuery succed");
               catch (Exception ex)
                    System.err.println("Caught an unexpected exception!");
                    ex.printStackTrace();
               System.out.println("Run GG");
               //System.exit(0); //Stops the AWT thread (and everything else)

Answer 1

Normally, if you are executing the client from the command line, you do not specify the classpath in a XML file (unless you are using ant or something similar). You can specify the classpath by using the -classpath option.
Try something like
java -classpath <path_to_jboss>/client/jbossall-client.jar;Betting_server.jar BettingServer
You can check the classpath in your client with the statement
System.out.print(System.getProperty("java.class.path"));