Oracle Universal connection pooling type cast problem while configuring in server.xml

[Thangavelu.V]

Hi Friends, 
          I am using universal connection pooling for connecting database ,
while configuring manually i able to connect to database,but while
configuring in server.xml i am unable to cast the datasource i am getting
the class cast exception, please find the below configuration and error
details , correct me if i configured wrong , I am  using Tomcat 6.0

server.xml configurartion

 <Context docBase="UCP" path="/UCP" reloadable="true"
source="org.eclipse.jst.jee.server:UCP"> 
      <Resource auth="Container" description="DataSource Reference"
driverClassName="oracle.jdbc.OracleDriver" 
                        maxActive="4" maxIdle="2" maxWait="5000"
name="jdbc/oracleds" factory="oracle.jdbc.pool.OracleDataSource" 
                        username="branch" password="branch"
type="oracle.ucp.jdbc.PoolDataSourceImpl" 
                        url="jdbc:oracle:thin:@//192.168.203.12:1521/ycs"
validationQuery="select 1 from dual"/> 
      </Context> 

Error Details
javax.naming.NamingException: Could not create resource factory instance
[Root exception is java.lang.ClassCastException:
oracle.jdbc.pool.OracleDataSource cannot be cast to
javax.naming.spi.ObjectFactory] 
        at
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.
java:102) 
        at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) 
        at org.apache.naming.NamingContext.lookup(NamingContext.java:793) 
        at org.apache.naming.NamingContext.lookup(NamingContext.java:140) 
        at org.apache.naming.NamingContext.lookup(NamingContext.java:781) 
        at org.apache.naming.NamingContext.lookup(NamingContext.java:153) 
        at TestServlet.doGet(TestServlet.java:37) 
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:290) 
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206) 
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:233) 
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191) 
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128
) 
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102
) 
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:109) 
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
        at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) 
        at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http
11Protocol.java:583) 
        at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) 
        at java.lang.Thread.run(Thread.java:619) 
Caused by: java.lang.ClassCastException: oracle.jdbc.pool.OracleDataSource
cannot be cast to javax.naming.spi.ObjectFactory 
        at
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.
java:98) 
        ... 20 more 


Java code for retrieving connection

Context initContext; 
                try { 
                        initContext = new InitialContext(); 
                
                Context envContext  =
(Context)initContext.lookup("java:/comp/env"); 
                DataSource ds =
(DataSource)envContext.lookup("jdbc/oracleds"); 
                } catch (NamingException e) { 
                        // TODO Auto-generated catch block 
                        e.printStackTrace(); 
                } 






Thanks and Regards,

V.Thangavelu

Software Engineer

"This e-mail message may contain confidential, proprietary or legally
privileged information. It should not be used by anyone who is not the
original intended recipient. If you have erroneously received this message,
please delete it immediately and notify the sender. The recipient
acknowledges that YALAMANCHILI or its subsidiaries and associated companies,
are unable to exercise control or ensure or guarantee the integrity of/over
the contents of the information contained in e-mail transmissions and
further acknowledges that any views expressed in this message are those of
the individual sender and no binding nature of the message shall be implied
or assumed unless the sender does so expressly with due authority of
YALAMANCHILI Group.  Before opening any attachments please check them for
viruses and defects."