connect to oracle through connection pool, DataSource

[mali djuro]

Hi, all
last few days i tried to make connection on database through connection pool.
the code i used is:
<%
...
String error = null;
try{
error = "Setting property...";
java.util.Properties params = new java.util.Properties();
params.setProperty(Context.INITIAL_CONTEXT_FACTORY,
"com.ibm.websphere.naming.WsnInitialContextFactory");
error = "Initializing InitialContext...";
javax.naming.Context ctx = new javax.naming.InitialContext(params);
error = "getting DataSource...";
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup("java:comp/env/jdbc/myDS");
error = "getting connection...";
java.sql.Connection conn = ds.getConnection(username, password);
System.out.println("DataSource works!!");
}
catch (Exception e){
System.out.println(error + e);
}
...
%>
i used variable error to detect where is problem.
when i start this application on Websphere server 4.0 i got following exception:
Initializing InitialContext...
javax.naming.NoInitialContextException:
Cannot instantiate class: com.ibm.websphere.naming.WsnInitialContextFactory
[Root exception is java.lang,ClassCastException]
if you have some ideas, or you have sollution,
please help.
thanks

[Bear Bibeault]

I think you'll get more pertinent response in the Webspere forum, so I'm going to move this topic along there.
bear