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

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(ApplicationFilterChain.java:290)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: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$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at 
org.apache.tomcat.util.net.JIoEndpoint$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 in Advance
Siva kumar

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