Cześć,
Próbuje skorzystać z Java API które udostępniane jest na serwerze WebSphere. Kiedy ururchamiam program na localhost wszystko jest OK i działa prawidłowo, ale kiedy probuję go uruchomić na moim komputerze dostaje błąd:

OSTRZEŻENIA: jndiUnavailCommErr
[Conn] - Error: javax.naming.ServiceUnavailableException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "corbaloc:iiop:20.10.11.11:31117".  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  A bootstrap address with no port specification defaults to port 2809.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. [Root exception is org.omg.CORBA.INTERNAL: java.net.UnknownHostException: portal: portal  vmcid: IBM  minor code: 5B6 completed: Maybe]
paź 22, 2014 1:39:00 PM com.ibm.ws.naming.util.WsnInitCtxFactory
OSTRZEŻENIA: jndiUnavailCommErr
Error getting plan bean: javax.naming.ServiceUnavailableException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "corbaloc:iiop:20.10.11.11:31117".  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  A bootstrap address with no port specification defaults to port 2809.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. [Root exception is org.omg.CORBA.INTERNAL: java.net.UnknownHostException: portal  vmcid: IBM  minor code: 5B6 completed: Maybe]
paź 22, 2014 1:39:00 PM com.ibm.ws.naming.util.WsnInitCtxFactory
OSTRZEŻENIA: jndiUnavailCommErr
[Conn] - Error: javax.naming.ServiceUnavailableException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "corbaloc:iiop:20.10.11.11:31117".  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  A bootstrap address with no port specification defaults to port 2809.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. [Root exception is org.omg.CORBA.INTERNAL: java.net.UnknownHostException: portal  vmcid: IBM  minor code: 5B6 completed: Maybe]
PrivilegedAction - Error calling EJB: java.lang.NullPointerException
java.lang.NullPointerException
 

Co może być nie tak? Jak sprawdzić czy JVM komunikuje się z serwerem na podanym porcie? A uprzedzając sugestię, adres Ip i port są poprawne:-)