JDBC operation throws a NullPointerException

Question

Hi all...
It seems that any attempt to perform a jdbc access from a deployed LCA (my process at this point only contains the JDBC 'query multiple to xml' operation) results in the following exception on the LC server (see below). The query and xml generation all seem to work ok from the Workbench. I can mail the lca upon request. Thanks.
[4/28/08 17:10:15:557 EDT] 00000059 SystemOut O [Flex] [ERROR] Root cause: java.lang.NullPointerException
at com.adobe.idp.dsc.jdbc.helper.SqlHelper.executeQuery(SqlHelper.java:85)
at com.adobe.idp.dsc.jdbc.JDBCService.queryMultipleToXml(JDBCService.java:391)
at sun.reflect.GeneratedMethodAccessor1517.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(DefaultPOJOInvokerImpl.jav a:181)
at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(InvocationInterceptor. java:134)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:44)
at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.doInTransaction(Transa ctionInterceptor.java:74)
at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapterBean.execute(EjbTr ansactionCMTAdapterBean.java:336)
at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapterBean.doSupports(Ej bTransactionCMTAdapterBean.java:212)
at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EJSLocalStatelessEjbTransactionCMTAdapter_ caf58c4f.doSupports(Unknown Source)
at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute(EjbTransactionProvi der.java:104)
at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.intercept(TransactionInt erceptor.java:72)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:44)
at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept(InvalidStateIntercep tor.java:37)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:44)
at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept(AuthorizationInterc eptor.java:88)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:44)
at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineImpl.java:113)
at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:102)
at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMessage(AbstractMessage Receiver.java:88)
at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessageDispatcher.java:21 0)
at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(AbstractMessageDispat cher.java:57)
at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:208)
at com.adobe.idp.taskmanager.dsc.service.TaskManagerServiceImpl.renderForm(TaskManagerServic eImpl.java:3404)
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:585)
at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(DefaultPOJOInvokerImpl.jav a:181)
at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(InvocationInterceptor. java:134)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:44)
at com.adobe.idp.dsc.trans

Answer 1

I don't see any blank values anywhere. I have a single 'Assign Task' operation with the following config. I can send an lca if you like.
Initial User = 'Assign to Process Creator'
Form Data Mappings => input form variable = /process_data/myXFAForm
output form var = /process_data/myXFAForm
myXFAForm has as its Render Service/Operation = JdbService/queryMultipleToXml with the following settings:
datasourceName(literal)= IDP_DS
sql_info(literal)= select FIRST_NAME, LAST_NAME, CONTACT_INFO, ORACLE_USERID from TVS_TVAS_USER where STATUS='ACTIVE'
xml_info (literal) = root: tvasUsers; element: User; mapping: [{element_name=firstname, column_index=1, column_name=FIRST_NAME}, {element_name=lastname, column_index=2, column_name=LAST_NAME}, {element_name=emailAddress, column_index=3, column_name=CONTACT_INFO}, {element_name=tvasUserID, column_index=4, column_name=ORACLE_USERID}]
service output settings:
document=task/Document