ОШИБКА [freemarker.runtime] [http-apr-8080-exec-2] Ошибка при выполнении шаблона FreeMarker

Question

Попытка получить значение Select (DropDown) из CSV-файла, используя Шаблон Freemarker .

Я сталкиваюсь с ошибкой

Если известно, что ошибочное выражение юридически равно нулю / отсутствует, либо укажите значение по умолчанию с помощью myOptionalVar! MyDefault, либо используйте<#if myOptiona lVar ??> когда-присутствует <#else> когда-отсутствует.(Они охватывают только последний шаг выражения; чтобы охватить все выражение, используйте круглые скобки: (myO ptionVar.foo)! MyDefault, (myOptionVar.foo) ??

Заранее спасибо.

The failing instruction:
==> #list datapn as datapn  [in template "it/iopenway/getPayerName.get.json.ftl" at line 1, column 2]'. Please contact your system administrator.
        at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1138)
        at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:171)
        at org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:519)
        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:464)
        at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:587)
        at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:656)
        at org.alfresco.repo.web.scripts.RepositoryContainer.executeScriptInternal(RepositoryContainer.java:428)
        at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:308)
        at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:399)
        at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:210)
        at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.alfresco.module.aosmodule.service.ContextRootFilter.doFilter(ContextRootFilter.java:93)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:68)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
        at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2549)
        at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2538)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Unknown Source)
Caused by: org.alfresco.service.cmr.repository.TemplateException: 00310027 Error during processing of the template 'The following has evaluated to nul
l or missing:
==> datapn  [in template "it/iopenway/getPayerName.get.json.ftl" at line 1, column 9]

Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use <#if myOptiona
lVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO
ptionVar.foo)!myDefault, (myOptionVar.foo)??



// JS
     function getEmsmcPayerNameConfig() {
     var response =[];
     connector = remote.connect("alfresco"),
     // query for configuration for item
     result = connector.get("/get-payer-name");
     if (result.status == 200)
     {  
     response.push({
     label: "None"
     });
     var payernames = JSON.parse(result);
     for (var i = 0, il = payernames.length; i < il; i++)
     {
     response.push({
     label: payernames[i].PayerName
     });
     }
     }
     return response;
     }
    var emsmcpayername = getEmsmcPayerNameConfig();
    var json = { emsmcpayername : emsmcpayername };
    model.json = jsonUtils.toJSONString(json);



 //FTL FILE
   [<#list datatl as datatl>
        {
           "TeamLead" : "${datatl.TeamLead?js_string}"

        }<#if datatl_has_next>, </#if>
   </#list>]