Hi
I am gettting a null pointer error even after entering the values.
i have a loging page when i first login with correct user name and password, it goes successfully , right afte i logout , by session.removeAttribut("user");
then i again i try to login then i getting the null pointer exception.
see the stack trace below:
pls let whats wrong, it was working fine till yesterday,but today i uninstall the IBM WSAD 5.1.0 and installed IBM WSAD 5.1.2.
java.lang.NullPointerException at oracle.jdbc.dbaccess.DBData.clearItem(DBData.java:431) at oracle.jdbc.dbaccess.DBDataSetImpl.clearItem(DBDataSetImpl..java:3528) at oracle.jdbc.driver.OraclePreparedStatement.clearParameters(OraclePreparedStatement.java:3401) at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.resetStatement(WSJdbcConnection.java:1762) at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.prepareStatement(WSJdbcConnection.java:1458) at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.prepareStatement(WSJdbcConnection.java:1424) at org.objectstyle.cayenne.access.DataNode.runBatchUpdateAsBatch(DataNode.java:523) at org.objectstyle.cayenne.dba.oracle.OracleDataNode.runBatchUpdateAsBatch(OracleDataNode.java:355) at org.objectstyle.cayenne.access.DataNode.runBatchUpdate(DataNode.java:498) at org.objectstyle.cayenne..access.DataNode.performQueries(DataNode.java:353) at org.objectstyle.cayenne.access.ContextCommit.commit(ContextCommit.java:192) at org.objectstyle.cayenne.access.DataContext.commitChanges(DataContext.java:1231) at org.objectstyle.cayenne.access.DataContext.commitChanges(DataContext.java:1201) at com.independenthealth.edwdma.admin.actions.LoginAction.execute(LoginAction.java:86) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174) at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116) at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283) at com.ibm.ws.webcontainer..servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42) at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:983) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:564) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:200) at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:119) at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:276) at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71) at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:116) at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:186) at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334) at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56) at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:618) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:443) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
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