Regarding database access in Struts

Hi All,
My problem-
I am inserting a value in database(MS ACCESS) using struts frame work.for the first time when i am executing the program the value is inserted but then again when i executed that program no insertion happens but it gives no error or exception. can u say what may be the problem for it?

Are you using validation framework in struts. I think your application properties file is missing

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    Thanks Prakash,
    The issue has been resolved.
    I'd like a bit more of your help. I'm facing an error as follows :
    2011-04-14 12:21:52,074 ERROR [XELLERATE.GC.PROVIDER.TRANSFORMATION] Could not transform the data
    java.lang.NullPointerException
         at com.thortech.xl.gc.util.TransformationEngine.doTransformation(Unknown Source)
         at com.thortech.xl.gc.util.TransformationEngine.transform(Unknown Source)
         at com.thortech.xl.gc.runtime.GCAdapterLibrary.executeFunctionality(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.GENERICADAPTER(adpDBAT_PROVISIONING1_GTC.java:125)
         at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.implementation(adpDBAT_PROVISIONING1_GTC.java:70)
         at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
         at com.thortech.xl.dataobj.tcORC.insertNonConditionalMilestones(Unknown Source)
         at com.thortech.xl.dataobj.tcORC.completeSystemValidationMilestone(Unknown Source)
         at com.thortech.xl.dataobj.tcOrderItemInfo.completeCarrierBaseMilestone(Unknown Source)
         at com.thortech.xl.dataobj.tcOrderItemInfo.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcUDProcess.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
         at com.thortech.xl.dataobj.tcTableDataObj.save(Unknown Source)
         at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
         at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
         at com.thortech.xl.ejb.beans.tcFormInstanceOperationsSession.setProcessFormData(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
         at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:237)
         at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158)
         at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:169)
         at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
         at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
         at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
         at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
         at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
         at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
         at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
         at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
         at org.jboss.ejb.Container.invoke(Container.java:960)
         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
         at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
         at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
         at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)
         at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)
         at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
         at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
         at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
         at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
         at $Proxy769.setProcessFormData(Unknown Source)
         at Thor.API.Operations.tcFormInstanceOperationsClient.setProcessFormData(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at Thor.API.Base.SecurityInvocationHandler$1.run(Unknown Source)
         at Thor.API.Security.LoginHandler.jbossLoginSession.runAs(Unknown Source)
         at Thor.API.Base.SecurityInvocationHandler.invoke(Unknown Source)
         at $Proxy813.setProcessFormData(Unknown Source)
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         at com.thortech.xl.webclient.actions.DirectProvisionUserAction.goNext(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
         at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(Unknown Source)
         at com.thortech.xl.webclient.actions.tcActionBase.execute(Unknown Source)
         at com.thortech.xl.webclient.actions.tcAction.execute(Unknown Source)
         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:710)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
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         at com.thortech.xl.webclient.security.SecurityFilter.doFilter(Unknown Source)
         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
         at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
         at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
         at java.lang.Thread.run(Thread.java:619)
    2011-04-14 12:21:52,074 ERROR [XELLERATE.GC.PROVIDER.TRANSFORMATION] Could not transform the data
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         at com.thortech.xl.gc.util.TransformationEngine.transform(Unknown Source)
         at com.thortech.xl.gc.runtime.GCAdapterLibrary.executeFunctionality(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
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         at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.implementation(adpDBAT_PROVISIONING1_GTC.java:70)
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         at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)
         at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
         at com.thortech.xl.dataobj.tcORC.insertNonConditionalMilestones(Unknown Source)
         at com.thortech.xl.dataobj.tcORC.completeSystemValidationMilestone(Unknown Source)
         at com.thortech.xl.dataobj.tcOrderItemInfo.completeCarrierBaseMilestone(Unknown Source)
         at com.thortech.xl.dataobj.tcOrderItemInfo.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcUDProcess.eventPostInsert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
         at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
         at com.thortech.xl.dataobj.tcTableDataObj.save(Unknown Source)
         at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
         at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
         at com.thortech.xl.ejb.beans.tcFormInstanceOperationsSession.setProcessFormData(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
         at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:237)
         at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158)
         at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:169)
         at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
         at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
         at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
         at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
         at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
         at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
         at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
         at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
         at org.jboss.ejb.Container.invoke(Container.java:960)
         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
         at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
         at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
         at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)
         at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)
         at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
         at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
         at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
         at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
         at $Proxy769.setProcessFormData(Unknown Source)
         at Thor.API.Operations.tcFormInstanceOperationsClient.setProcessFormData(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at Thor.API.Base.SecurityInvocationHandler$1.run(Unknown Source)
         at Thor.API.Security.LoginHandler.jbossLoginSession.runAs(Unknown Source)
         at Thor.API.Base.SecurityInvocationHandler.invoke(Unknown Source)
         at $Proxy813.setProcessFormData(Unknown Source)
         at com.thortech.xl.webclient.actions.DirectProvisionUserAction.handleVerifyProcessData(Unknown Source)
         at com.thortech.xl.webclient.actions.DirectProvisionUserAction.goNext(Unknown Source)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
         at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(Unknown Source)
         at com.thortech.xl.webclient.actions.tcActionBase.execute(Unknown Source)
         at com.thortech.xl.webclient.actions.tcAction.execute(Unknown Source)
         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:710)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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    ~
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