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From Harry Metske <harry.met...@gmail.com>
Subject Re: Oracle Universal connection pooling type cast problem while configuring in server.xml
Date Mon, 19 Apr 2010 07:03:31 GMT
this is an exact cut/paste from an earlier post, it won't help you repeating
the same questions.

regards,
Harry


2010/4/19 Thangavelu.V <thangavelu.v@yalamanchili.co.in>

> 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
>
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