Facing error while trying to execute stored procedure from JSF Application

Hi, I am facing the below error when I try to execute a stored Procedure from JSF application which is deployed on WAS 7.0
=2013-03-04 19:06:58,550 INFO [com.lloydstsb.iw.util.DBUtils] - DBUtils : executeFileNetStoredProc method started..
=2013-03-04 19:11:58,271 ERROR [com.lloydstsb.iw.dao.FileNetCustomDBSynchDAOImpl] - Data Access Exception
com.lloydstsb.iw.common.exceptions.DataAccessException: Data Access Exception Occured : Integration Stored Proc- java.sql.SQLException: java.lang.ClassCastException: oracle.jdbc.driver.LogicalConnection incompatible with oracle.jdbc.OracleConnection
     at com.lloydstsb.iw.util.DBUtils.executeFileNetStoredProc(DBUtils.java:959)
     at com.lloydstsb.iw.util.DAOUtil.executeFileNetStoredProc(DAOUtil.java:117)
     at com.lloydstsb.iw.dao.FileNetCustomDBSynchDAOImpl.updateFileNetDetailsCustomDB(FileNetCustomDBSynchDAOImpl.java:36)
     at com.lloydstsb.iw.servlet.IndexServlet.service(IndexServlet.java:127)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1443)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:790)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:443)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:175)
     at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:91)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:859)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1557)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:173)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:455)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:384)
     at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:202)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:766)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:896)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1527)
The oracle version we are using is 11g.
Previously it worked fine when the application was used in 10g.
Can someone please help me in resolving this issue?
Kiran
Edited by: 991640 on Mar 4, 2013 8:25 PM

java.lang.ClassCastException: oracle.jdbc.driver.LogicalConnection incompatible with oracle.jdbc.OracleConnection
Are the the JDBC JARs packaged with the application? If so, remove the applicaiton packaged JDBC JARs as the JARs are also in WebSphere application server.

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