2 Replies Latest reply on Nov 17, 2012 6:58 AM by Dariusz Kominek

    ejb client and naming error - problem

    Dariusz Kominek Newbie

      I'm very beginner in ejb programming so please don't be angry if the question is easy.

      Below is a code I wrote and it produces an error. What should I change to get this to work? I work with Eclipse Juno and JBoss 7.1.1. Below example should work for

      Application Server - JBoss 4.2.2 GA

      IDE - Eclipse 3.4.1

      It doesn't work for my environment. Any help will be appreciated.

       

      javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]

      at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:674)

      at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)

      at javax.naming.InitialContext.init(InitialContext.java:242)

      at javax.naming.InitialContext.<init>(InitialContext.java:216)

      at MyBeanClient.main(MyBeanClient.java:13)

      Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory

      at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

      at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

      at java.security.AccessController.doPrivileged(Native Method)

      at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

      at java.lang.ClassLoader.loadClass(ClassLoader.java:423)

      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

      at java.lang.ClassLoader.loadClass(ClassLoader.java:356)

      at java.lang.Class.forName0(Native Method)

      at java.lang.Class.forName(Class.java:264)

      at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:63)

      at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)

      ... 4 more

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

      IMyBean.java

       

      import java.io.Serializable;

      public interface IMyBean extends Serializable {

      public void doSomething();

      }

       

      MyBeanRemote.java

       

      import javax.ejb.Remote;

      @Remote

      public interface MyBeanRemote extends IMyBean{

      }

       

      MyBeanLocal.java

       

      import javax.ejb.Local;

      @Local

      public interface MyBeanLocal extends IMyBean {

      }

       

      MyBean.java

       

      import javax.ejb.Stateless;

      @Stateless

      public class MyBean implements MyBeanLocal, MyBeanRemote {

      private static final long serialVersionUID = 9184424076718418234L;

      public void doSomething() {

      System.out.println("Hello World!");

      }

      }

       

      MyBeanClient.java

       

      import java.util.Properties;

      import javax.naming.InitialContext;

      import javax.naming.NamingException;

      public class MyBeanClient {

      public static void main(String[] args) {

      try {

      Properties props = new Properties();

      props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");

      props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");

      props.setProperty("java.naming.provider.url", "127.0.0.1:1099");

       

      InitialContext ctx = new InitialContext(props);

      MyBeanRemote bean = (MyBeanRemote) ctx.lookup("MyBean/remote");

       

      bean.doSomething();

      } catch (NamingException e) {

      e.printStackTrace();

      }

      }

      }