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"SOM expression returned list when single result was expected" error trying to display form

Jan 9, 2012 2:00 PM

Any Ideas on troubleshooting this error?



I am using ES2 SP2, on Windows.

Here is the dump from the log, sorry for the format issue, I was unable to figure out the paste option.

This is a new but complicated form with many nested subforms.

It seems to render if I save the form as a PDF, and render it with the standard Process Management "Render PDF Form" service.

If I save it as an XDP, and try to render it Reader Extended it dies like this.

Any help or Ideas are greatly appreciated.

 

Thanks

Mark

 

ALC-FRM-001-013: XMLFormFactory, PAexecute failure: "(com.adobe.document.xmlform.ReturnStatus@6c0abc13) SOM expression returned list when single result was expected"                 at com.adobe.formServer.FormServer.renderForm(FormServer.java:233)                  at com.adobe.formServer.FormServer.renderForm(FormServer.java:281)                  at com.adobe.formServer.docservice.FormsDocService.renderForm(FormsDocSe rvice.java:556)                 at com.adobe.formServer.docservice.FormsDocService.renderForm(FormsDocSe rvice.java:470)                 at com.adobe.formServer.docservice.FormsDocService.renderPDFFormCommonCa ller(FormsDocService.java:164)                 at com.adobe.formServer.docservice.FormsDocService.renderPDFForm(FormsDo cService.java:130)                 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)                 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(Defaul tPOJOInvokerImpl.java:118)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequired(EjbTransactionCMTAdapterBean.java:274)                  at sun.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:350)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequired(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:129)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:188)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:225)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.workflow.engine.PEUtil.invokeAction(PEUtil.java:885)                  at com.adobe.idp.workflow.dsc.invoker.WorkflowDSCInvoker.transientInvoke (WorkflowDSCInvoker.java:347)                 at com.adobe.idp.workflow.dsc.invoker.WorkflowDSCInvoker.invoke(Workflow DSCInvoker.java:158)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequiresNew(EjbTransactionCMTAdapterBean.java:299)                  at sun.reflect.GeneratedMethodAccessor251.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:404)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequiresNew(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:143)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:188)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:225)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.idp.taskmanager.dsc.service.TaskManagerServiceImpl.renderFo rm(TaskManagerServiceImpl.java:4646)                 at sun.reflect.GeneratedMethodAccessor12148.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(Defaul tPOJOInvokerImpl.java:118)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequiresNew(EjbTransactionCMTAdapterBean.java:299)                  at sun.reflect.GeneratedMethodAccessor251.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:404)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequiresNew(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:143)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:165)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:198)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.invokeWi thRetry2(TypedTaskManagerService.java:159)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.invokeWi thRetry(TypedTaskManagerService.java:147)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.callRend erService(TypedTaskManagerService.java:1441)                 at com.adobe.workspace.tasks.TaskActions.render(TaskActions.java:768)                  at sun.reflect.GeneratedMethodAccessor1264.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at flex.messaging.services.remoting.adapters.JavaAdapter.invoke(JavaAdap ter.java:421)                 at flex.messaging.services.RemotingService.serviceMessage(RemotingServic e.java:183)                 at flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java :1406)                 at flex.messaging.AsyncMessageBroker.routeMessageToService(AsyncMessageB roker.java:571)                 at flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndp oint.java:1005)                 at flex.messaging.endpoints.amf.MessageBrokerFilter.invoke(MessageBroker Filter.java:103)                 at flex.messaging.endpoints.amf.LegacyFilter.invoke(LegacyFilter.java:15 8)                 at flex.messaging.endpoints.amf.SessionFilter.invoke(SessionFilter.java: 44)                 at flex.messaging.endpoints.amf.BatchProcessFilter.invoke(BatchProcessFi lter.java:67)                 at flex.messaging.endpoints.amf.SerializationFilter.invoke(Serialization Filter.java:165)                 at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.ja va:293)                 at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java :364)                 at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)                  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:290)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at com.adobe.workspace.events.RemoteEventClientLifeCycle.doFilter(Remote EventClientLifeCycle.java:152)                 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi lter.java:96)                 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:230)                 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:175)                 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit yAssociationValve.java:179)                 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv e.java:84)                 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:128)                 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:104)                 at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC onnectionValve.java:157)                 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109)                 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:241)                 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java :844)                 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce ss(Http11Protocol.java:580)                 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44 7)                 at java.lang.Thread.run(Unknown Source) 2012-01-09 14:58:17,178 INFO  [STDOUT] [LCDS][ERROR] Exception when invoking service 'remoting-service': flex.messaging.MessageException: ALC-WKS-005-028: A problem occurred in the Render Service for Task "8258".  Please review the render orchestration for this process.   incomingMessage: Flex Message (flex.messaging.messages.RemotingMessage)     operation = render     parameters = [44F8A32C-A8D6-102E-B9D6-00000A3085AB, 8258, 0, ASObject(242517833){acrobatVersion=10.0., acroClientType=}]     clientId = D3292091-580B-C7E7-38E3-8E9ECB817F50     destination = task-actions     messageId = 590434A1-5953-17C9-55C4-C443A2F281A3     timestamp = 1326142694104     timeToLive = 0     body = null     hdr(DSId) = D30D08B0-BD1F-B9A8-DCF0-9414276B403E     hdr(DSEndpoint) = workspace-polling-amf   Exception: flex.messaging.MessageException: ALC-WKS-005-028: A problem occurred in the Render Service for Task "8258".  Please review the render orchestration for this process.                 at com.adobe.workspace.AssemblerUtility.createMessageException(Assembler Utility.java:412)                 at com.adobe.workspace.tasks.TaskActions.render(TaskActions.java:822)                  at sun.reflect.GeneratedMethodAccessor1264.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at flex.messaging.services.remoting.adapters.JavaAdapter.invoke(JavaAdap ter.java:421)                 at flex.messaging.services.RemotingService.serviceMessage(RemotingServic e.java:183)                 at flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java :1406)                 at flex.messaging.AsyncMessageBroker.routeMessageToService(AsyncMessageB roker.java:571)                 at flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndp oint.java:1005)                 at flex.messaging.endpoints.amf.MessageBrokerFilter.invoke(MessageBroker Filter.java:103)                 at flex.messaging.endpoints.amf.LegacyFilter.invoke(LegacyFilter.java:15 8)                 at flex.messaging.endpoints.amf.SessionFilter.invoke(SessionFilter.java: 44)                 at flex.messaging.endpoints.amf.BatchProcessFilter.invoke(BatchProcessFi lter.java:67)                 at flex.messaging.endpoints.amf.SerializationFilter.invoke(Serialization Filter.java:165)                 at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.ja va:293)                 at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java :364)                 at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)                  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:290)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at com.adobe.workspace.events.RemoteEventClientLifeCycle.doFilter(Remote EventClientLifeCycle.java:152)                 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi lter.java:96)                 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206)                 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:230)                 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:175)                 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit yAssociationValve.java:179)                 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv e.java:84)                 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:128)                 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:104)                 at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC onnectionValve.java:157)                 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109)                 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:241)                 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java :844)                 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce ss(Http11Protocol.java:580)                 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44 7)                 at java.lang.Thread.run(Unknown Source) Caused by: com.adobe.idp.taskmanager.dsc.client.task.TaskManagerException: Error Invoking render Operation For (taskId, formId):(8258 ,0).  Error Message is: ALC-FRM-001-013: XMLFormFactory, PAexecute failure: "(com.adobe.document.xmlform.ReturnStatus@6c0abc13) SOM expression returned list when single result was expected"                 at com.adobe.formServer.FormServer.renderForm(FormServer.java:233)                  at com.adobe.formServer.FormServer.renderForm(FormServer.java:281)                  at com.adobe.formServer.docservice.FormsDocService.renderForm(FormsDocSe rvice.java:556)                 at com.adobe.formServer.docservice.FormsDocService.renderForm(FormsDocSe rvice.java:470)                 at com.adobe.formServer.docservice.FormsDocService.renderPDFFormCommonCa ller(FormsDocService.java:164)                 at com.adobe.formServer.docservice.FormsDocService.renderPDFForm(FormsDo cService.java:130)                 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)                 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(Defaul tPOJOInvokerImpl.java:118)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequired(EjbTransactionCMTAdapterBean.java:274)                  at sun.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:350)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequired(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:129)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:188)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:225)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.workflow.engine.PEUtil.invokeAction(PEUtil.java:885)                  at com.adobe.idp.workflow.dsc.invoker.WorkflowDSCInvoker.transientInvoke (WorkflowDSCInvoker.java:347)                 at com.adobe.idp.workflow.dsc.invoker.WorkflowDSCInvoker.invoke(Workflow DSCInvoker.java:158)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequiresNew(EjbTransactionCMTAdapterBean.java:299)                  at sun.reflect.GeneratedMethodAccessor251.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:404)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequiresNew(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:143)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:188)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:225)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.idp.taskmanager.dsc.service.TaskManagerServiceImpl.renderFo rm(TaskManagerServiceImpl.java:4646)                 at sun.reflect.GeneratedMethodAccessor12148.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(Defaul tPOJOInvokerImpl.java:118)                 at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(In vocationInterceptor.java:140)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.int ercept(DocumentPassivationInterceptor.java:53)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.do InTransaction(TransactionInterceptor.java:74)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.execute(EjbTransactionCMTAdapterBean.java:357)                 at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapt erBean.doRequiresNew(EjbTransactionCMTAdapterBean.java:299)                  at sun.reflect.GeneratedMethodAccessor251.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.jboss.invocation.Invocation.performCall(Invocation.java:359)                  at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(S tatelessSessionContainer.java:237)                 at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invo ke(CachedConnectionInterceptor.java:158)                 at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stat elessSessionInstanceInterceptor.java:169)                 at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidation Interceptor.java:63)                 at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInte rceptor.java:121)                 at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxIntercep torCMT.java:404)                 at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:1 81)                 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(ProxyFacto ryFinderInterceptor.java:138)                 at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:6 48)                 at org.jboss.ejb.Container.invoke(Container.java:960)                 at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalPro xyFactory.java:430)                 at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSes sionProxy.java:103)                 at $Proxy173.doRequiresNew(Unknown Source)                 at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute (EjbTransactionProvider.java:143)                 at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.inte rcept(TransactionInterceptor.java:72)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.inte rcept(InvocationStrategyInterceptor.java:55)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept( InvalidStateInterceptor.java:37)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept (AuthorizationInterceptor.java:165)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterc eptor.java:48)                 at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.procee d(RequestInterceptorChainImpl.java:60)                 at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineI mpl.java:115)                 at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)                  at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.routeMes sage(AbstractMessageReceiver.java:93)                 at com.adobe.idp.dsc.provider.impl.vm.VMMessageDispatcher.doSend(VMMessa geDispatcher.java:198)                 at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:66)                 at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.invokeWi thRetry2(TypedTaskManagerService.java:159)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.invokeWi thRetry(TypedTaskManagerService.java:147)                 at com.adobe.idp.taskmanager.dsc.client.TypedTaskManagerService.callRend erService(TypedTaskManagerService.java:1441)                 at com.adobe.workspace.tasks.TaskActions.render(TaskActions.java:768)                  ... 37 more

 
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