[jboss-user] [Advanced Documentation] - JBoss 4.0.4.GA HomeHandle NoInitialContext
We use some kind of cache of HomeHandle objects in a remote JVM that obtains the Home
object using the following code:
Hashtable environment = new Hashtable();
environment.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
environment.put(Context.URL_PKG_PREFIXES,
"org.jboss.naming:org.jnp.interfaces");
environment.put(Context.PROVIDER_URL, "jnp://localhost:1099");
InitialContext context;
try {
context = new InitialContext(environment);
Object obj = context.lookup("ejb/EJBTest"); //ejb-name
EJBHome home =
(EJBHome)PortableRemoteObject.narrow(obj,EJBTestHome.class); // (1)
...
} catch (NamingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
After (1) we store the HomeHandle of the EJBHome object in that way we can use it in a
latter time saving the overhead of the lookup opeartion. BUT we get the following error
when we invoke getEJBHome() on the stored HomeHandle object.
Caused by: java.rmi.ServerException: Could not get EJBHome; nested exception is:
javax.naming.NoInitialContextException: Need to specify class name in environment or
system property, or as an applet parameter, or in an application resource file:
java.naming.factory.initial
at org.jboss.proxy.ejb.handle.HomeHandleImpl.getEJBHome(HomeHandleImpl.java:107)
at communication.serviceLocator.EJBServiceLocator.getService(EJBServiceLocator.java:68)
... 2 more
Caused by: javax.naming.NoInitialContextException: Need to specify class name in
environment or system property, or as an applet parameter, or in an application resource
file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:645)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:284)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.jboss.proxy.ejb.handle.HomeHandleImpl.getEJBHome(HomeHandleImpl.java:102)
... 3 more
Anyone know why it is not working ? Anyone knows if there is a problem using a remote
client (that lives outside de Jboss JVM) that stores/retrieve the HomeHandle of an EJBHome
object that resides in the JBoss JVM.
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