I created a simple SesionBean. I deployed into the JBoss 4.0.5 and when i try to access the bean i get the following error: Exception in thread "main" javax.naming.NoInitialContextException: Cannot instan tiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory] at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6 57) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247 ) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.(InitialContext.java:175) at client.SimpleSessionClient.main(SimpleSessionClient.java:9) Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFac tory at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.jav a:42) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6 54) ... 4 more Please give me some help about this. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4008320#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...