topic Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing: in Alfresco Forum https://connect.hyland.com/t5/alfresco-forum/caused-by-freemarker-core-invalidreferenceexception-the/m-p/76098#M24117 <HTML><HEAD></HEAD><BODY><P>Caused by: org.alfresco.service.cmr.repository.TemplateException: 02010171 Error during processing of the template 'The following has evaluated to nul<BR />l or missing:<BR />==&gt; clientdata [in template "it/iopenway/emsmcrefund-getClient.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list clientdata as clientdata [in template "it/iopenway/emsmcrefund-getClient.get.json.ftl" at line 1, column 2]'. Please contact your system ad<BR />ministrator.<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:234)<BR /> at org.springframework.extensions.webscripts.AbstractWebScript.renderTemplate(AbstractWebScript.java:967)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.renderFormatTemplate(DeclarativeWebScript.java:267)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:147)<BR /> ... 37 more<BR />Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:<BR />==&gt; clientdata [in template "it/iopenway/emsmcrefund-getClient.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list clientdata as clientdata [in template "it/iopenway/emsmcrefund-getClient.get.json.ftl" at line 1, column 2]<BR /> at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:98)<BR /> at freemarker.core.Expression.assertNonNull(Expression.java:205)<BR /> at freemarker.core.IteratorBlock.accept(IteratorBlock.java:100)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.MixedContent.accept(MixedContent.java:93)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.Environment.process(Environment.java:243)<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:230)<BR /> ... 40 more<BR />2019-03-01 10:52:40,514 ERROR [extensions.webscripts.AbstractRuntime] [http-apr-8080-exec-1] Exception from executeScript: 02010038 Wrapped Exception<BR /> (with status template): 02010170 Error during processing of the template 'The following has evaluated to null or missing:<BR />==&gt; dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list dataas as dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 2]'. Please contact your system adm<BR />inistrator.<BR /> org.springframework.extensions.webscripts.WebScriptException: 02010038 Wrapped Exception (with status template): 02010170 Error during processing of<BR />the template 'The following has evaluated to null or missing:<BR />==&gt; dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list dataas as dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 2]'. Please contact your system adm<BR />inistrator.<BR /> at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1138)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:171)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:519)<BR /> at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:464)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:587)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:656)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.executeScriptInternal(RepositoryContainer.java:428)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:308)<BR /> at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:399)<BR /> at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:210)<BR /> at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)<BR /> at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.alfresco.module.aosmodule.service.ContextRootFilter.doFilter(ContextRootFilter.java:93)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:68)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)<BR /> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)<BR /> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)<BR /> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)<BR /> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)<BR /> at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)<BR /> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)<BR /> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)<BR /> at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)<BR /> at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)<BR /> at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2549)<BR /> at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2538)<BR /> at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)<BR /> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)<BR /> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<BR /> at java.lang.Thread.run(Unknown Source)<BR />Caused by: org.alfresco.service.cmr.repository.TemplateException: 02010170 Error during processing of the template 'The following has evaluated to nul<BR />l or missing:<BR />==&gt; dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list dataas as dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 2]'. Please contact your system adm<BR />inistrator.<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:234)<BR /> at org.springframework.extensions.webscripts.AbstractWebScript.renderTemplate(AbstractWebScript.java:967)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.renderFormatTemplate(DeclarativeWebScript.java:267)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:147)<BR /> ... 37 more<BR />Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:<BR />==&gt; dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list dataas as dataas [in template "it/iopenway/emsmcrefund-getAddressStatus.get.json.ftl" at line 1, column 2]<BR /> at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:98)<BR /> at freemarker.core.Expression.assertNonNull(Expression.java:205)<BR /> at freemarker.core.IteratorBlock.accept(IteratorBlock.java:100)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.MixedContent.accept(MixedContent.java:93)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.Environment.process(Environment.java:243)<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:230)<BR /> ... 40 more<BR />2019-03-01 10:52:40,494 ERROR [extensions.webscripts.AbstractRuntime] [http-apr-8080-exec-17] Exception from executeScript: 02010037 Wrapped Exceptio<BR />n (with status template): 02010169 Error during processing of the template 'The following has evaluated to null or missing:<BR />==&gt; datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list datapn as datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 2]'. Please contact your system adminis<BR />trator.<BR /> org.springframework.extensions.webscripts.WebScriptException: 02010037 Wrapped Exception (with status template): 02010169 Error during processing of<BR />the template 'The following has evaluated to null or missing:<BR />==&gt; datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list datapn as datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 2]'. Please contact your system adminis<BR />trator.<BR /> at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1138)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:171)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:519)<BR /> at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:464)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:587)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:656)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.executeScriptInternal(RepositoryContainer.java:428)<BR /> at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:308)<BR /> at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:399)<BR /> at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:210)<BR /> at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)<BR /> at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.alfresco.module.aosmodule.service.ContextRootFilter.doFilter(ContextRootFilter.java:93)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:68)<BR /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)<BR /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)<BR /> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)<BR /> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)<BR /> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)<BR /> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)<BR /> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)<BR /> at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)<BR /> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)<BR /> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)<BR /> at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)<BR /> at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)<BR /> at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2549)<BR /> at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2538)<BR /> at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)<BR /> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)<BR /> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<BR /> at java.lang.Thread.run(Unknown Source)<BR />Caused by: org.alfresco.service.cmr.repository.TemplateException: 02010169 Error during processing of the template 'The following has evaluated to nul<BR />l or missing:<BR />==&gt; datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list datapn as datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 2]'. Please contact your system adminis<BR />trator.<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:234)<BR /> at org.springframework.extensions.webscripts.AbstractWebScript.renderTemplate(AbstractWebScript.java:967)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.renderFormatTemplate(DeclarativeWebScript.java:267)<BR /> at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:147)<BR /> ... 37 more<BR />Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:<BR />==&gt; datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 9]</P><P>Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use &lt;#if myOptiona<BR />lVar??&gt;when-present&lt;#else&gt;when-missing&lt;/#if&gt;. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myO<BR />ptionVar.foo)!myDefault, (myOptionVar.foo)??</P><P>The failing instruction:<BR />==&gt; #list datapn as datapn [in template "it/iopenway/emsmcrefund-getPayerName.get.json.ftl" at line 1, column 2]<BR /> at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:98)<BR /> at freemarker.core.Expression.assertNonNull(Expression.java:205)<BR /> at freemarker.core.IteratorBlock.accept(IteratorBlock.java:100)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.MixedContent.accept(MixedContent.java:93)<BR /> at freemarker.core.Environment.visit(Environment.java:265)<BR /> at freemarker.core.Environment.process(Environment.java:243)<BR /> at org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:230)<BR /> ... 40 more</P></BODY></HTML> Fri, 01 Mar 2019 11:46:26 GMT karuppasamy 2019-03-01T11:46:26Z Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing: https://connect.hyland.com/t5/alfresco-forum/caused-by-freemarker-core-invalidreferenceexception-the/m-p/76098#M24117 Caused by: org.alfresco.service.cmr.repository.TemplateException: 02010171 Error during processing of the template 'The following has evaluated to null or missing:==&gt; clientdata [in template "it/iopenway/emsmcrefund-getClient.get.json.ftl" at line 1, column 9]Tip: If the failing expression is kno Fri, 01 Mar 2019 11:46:26 GMT https://connect.hyland.com/t5/alfresco-forum/caused-by-freemarker-core-invalidreferenceexception-the/m-p/76098#M24117 karuppasamy 2019-03-01T11:46:26Z Re: Caused by: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing: https://connect.hyland.com/t5/alfresco-forum/caused-by-freemarker-core-invalidreferenceexception-the/m-p/76099#M24118 <HTML><HEAD></HEAD><BODY><P>As the stack trace indicates, your variables (clientdata, datapn, dataas) are null. You should do a null check in your freemarker template to avoid accessing a null variable.</P><P></P><P>As you have only provided a stack trace and no other context or code, I really can't help you further.</P></BODY></HTML> Sat, 02 Mar 2019 20:46:17 GMT https://connect.hyland.com/t5/alfresco-forum/caused-by-freemarker-core-invalidreferenceexception-the/m-p/76099#M24118 jpotts 2019-03-02T20:46:17Z