Calling Java API from ABAP using JCo

I need to call Java API from ABAP & BSP also. For this I have got useful information related to JCo from following blog:
/people/gregor.wolf3/blog/2004/08/26/setup-and-test-sap-java-connector-outbound-connection
But, I am facing one problem. On executing Java program myExample5.java (recommended by Gregor Wolf) from command line I get following error message:
Server JCOSERVER01 changed state from [ STOPPED ] to [ STARTED ]
Exception in server JCOSERVER01:
com.sap.mw.jco.JCO$Exception: (129) JCO_ERROR_SERVER_STARTUP: Server startup failed at Thu Apr 26 13:46:32 IST 2007.
This is caused by either a) erroneous server settings, b) the backend system has
been shutdown, c) network problems. Will try next startup in 1 seconds.
Connect to SAP gateway failed
Connect_PM  TPNAME=JCOSERVER01, GWHOST=gateway, GWSERV=3300
LOCATION    CPIC (TCP/IP) on local host
ERROR       hostname 'gateway' unknown
TIME        Thu Apr 26 13:46:32 2007
RELEASE     640
COMPONENT   NI (network interface)
VERSION     37
RC          -2
MODULE      ninti.c
LINE        336
DETAIL      NiPGetHostByName2: hostname 'gateway' not found
SYSTEM CALL gethostbyname_r
COUNTER     1.
Can anyone please help me out. Do I need to do any setting?
I'll surely reward points.
Thanks & Regards,
Nilesh Kumar

Hi Nilesh,
From the error i think that the error is with the hostname.
Please enter the the Application Server IP/Hostname.
If you are loggin to SAP System "XX1" from SAP GUI. Then click the change Item tab and see Application server name/IP let say "XX2" for hostname or "xx.xx.xx.xx" for IP.
Replace <i>srv[0] = new Server("gateway","sapgw00","JCOSERVER01",repository);</i>
with <i>srv[0] = new Server("XX2","sapgw00","JCOSERVER01",repository);</i>
If App Server is IP then replace with
<i>srv[0] = new Server("xx.xx.xx.xx","sapgw00","JCOSERVER01",repository);</i>
Let me know if it is throwing any error.
Thanks,
Prashil

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    We are trying for RFC inbound scenario.
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