How many enterprise beans?
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How does ejb invocation happens?
How is an entity bean created?
What does @inject mean in java?
List some key actors in persistence api.
What is ejb in java?
Why is ejb used?
What is meant by manifest files ?
What is ejb and its architecture?
In my project iam integrating telephone line using some bridge. To connect my project to that telephone line they have give some jar file. Using dat i connected with that.. To handle that event like call attented, call disposed and idle time they have give one event listener class.. I did every thing and this class is alsoo called when a particular event is fired. The only thing is i wanna call EJB from that event listener method.. But the EJB is not getting initated and exception is thrown. This below shownn error is occured only i try to call it from this event listener class. In other places EJB calling is working fine.. 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:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more 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:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more It would be more help full if i get the solution 10x in advance balaji
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