Problem with database connect

[Poulome Ray]

Hi
I am using JBoss with Eclipse and Oracle 10G
i have given a dabase connection pooling detail in struts-config.xml as following.
<data-sources>
<data-source
autoCommit="false"
description="Oracle Database Config"
driverClass="oracle.jdbc.driver.OracleDriver"
key="LOOKDB"
maxCount="4"
minCount="2"
password="fms_admin"
url="jdbc racle:thin:@192.168.0.16:1521:netmind"
user="fms_admin"
/>
</data-sources>

and now i am looup this datacource using the following code.
DataSource ds=null;
ds=(DataSource)new InitialContext.lookup("jdbc/REFDB")
Conn=ds.getConnection();

but whenever i am starting my server i am getting following exception

Initializing application data source REFDB
java.lang.NullPointerException
javax.servlet.UnavailableException: Initializing application data source REFDB

please tell me where i am wrong.

Thanks
Pankaj