Method public java.lang.String org.ofbiz.widget.screen.ScreenRenderer.render(java.lang.String) throws org.ofbiz.base.util.GeneralException,java.io.IOException,org.xml.sax.SAXException,javax.xml.parsers.ParserConfigurationException threw an exception when invoked on org.ofbiz.widget.screen.ScreenRenderer@4750cd0e with arguments of types [java.lang.String,] The problematic instruction: ---------- ==> ${screens.render("component://ecommerce/widget/CONew2016/BestPracticesPageScreens.xml#bottom-right-banner-article-detail")} [on line 12, column 17 in component://ecommerce/webapp/ecommerce/CONew2016/bestpractices/article_detail/content_Main.ftl] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateModelException: Method public java.lang.String org.ofbiz.widget.screen.ScreenRenderer.render(java.lang.String) throws org.ofbiz.base.util.GeneralException,java.io.IOException,org.xml.sax.SAXException,javax.xml.parsers.ParserConfigurationException threw an exception when invoked on org.ofbiz.widget.screen.ScreenRenderer@4750cd0e with arguments of types [java.lang.String,] at freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:134) at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.process(Environment.java:199) at org.ofbiz.base.util.template.FreeMarkerWorker.renderTemplate(FreeMarkerWorker.java:257) at org.ofbiz.widget.screen.HtmlWidget.renderHtmlTemplate(HtmlWidget.java:225) at org.ofbiz.widget.screen.HtmlWidget$HtmlTemplate.renderWidgetString(HtmlWidget.java:270) at org.ofbiz.widget.screen.HtmlWidget.renderWidgetString(HtmlWidget.java:130) at org.ofbiz.widget.screen.ModelScreenWidget$PlatformSpecific.renderWidgetString(ModelScreenWidget.java:920) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:135) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:97) at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:866) at freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:104) at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.process(Environment.java:199) at org.ofbiz.base.util.template.FreeMarkerWorker.renderTemplate(FreeMarkerWorker.java:257) at org.ofbiz.widget.screen.HtmlWidget.renderHtmlTemplate(HtmlWidget.java:225) at org.ofbiz.widget.screen.HtmlWidget$HtmlTemplate.renderWidgetString(HtmlWidget.java:270) at org.ofbiz.widget.screen.HtmlWidget.renderWidgetString(HtmlWidget.java:130) at org.ofbiz.widget.screen.ModelScreenWidget$PlatformSpecific.renderWidgetString(ModelScreenWidget.java:920) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:135) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:97) at org.ofbiz.widget.screen.MacroScreenViewHandler.render(MacroScreenViewHandler.java:104) at org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:865) at org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:582) at org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:224) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339) at com.metricstream.SEOServlet.dispatchEcommerceRequest(SEOServlet.java:287) at com.metricstream.SEOServlet.findPattern(SEOServlet.java:236) at com.metricstream.SEOServlet.doGet(SEOServlet.java:49) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.ofbiz.widget.screen.ScreenRenderException: Error rendering screen [component://ecommerce/widget/CONew2016/BestPracticesPageScreens.xml#bottom-right-banner-article-detail]: org.ofbiz.entity.transaction.GenericTransactionException: The current transaction is marked for rollback, not beginning a new transaction and aborting current operation; the rollbackOnly was caused by: Error rendering screen [component://ecommerce/widget/CONew2016/BestPracticesPageScreens.xml#trainings-article-detail]: java.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null objectjava.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object (Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object) (The current transaction is marked for rollback, not beginning a new transaction and aborting current operation; the rollbackOnly was caused by: Error rendering screen [component://ecommerce/widget/CONew2016/BestPracticesPageScreens.xml#trainings-article-detail]: java.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null objectjava.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object (Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object)) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:423) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:135) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:97) at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:866) at freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:104) ... 74 more Caused by: org.ofbiz.entity.transaction.GenericTransactionException: The current transaction is marked for rollback, not beginning a new transaction and aborting current operation; the rollbackOnly was caused by: Error rendering screen [component://ecommerce/widget/CONew2016/BestPracticesPageScreens.xml#trainings-article-detail]: java.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null objectjava.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object (Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object) at org.ofbiz.entity.transaction.TransactionUtil.begin(TransactionUtil.java:159) at org.ofbiz.entity.transaction.TransactionUtil.begin(TransactionUtil.java:127) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:388) ... 81 more Caused by: java.lang.IllegalArgumentException: Error running script at location [component://ecommerce/webapp/ecommerce/WEB-INF/actions/CONew2016/bestpractices/article_detail/trainings_articleDetail.groovy]: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getString() on null object at org.ofbiz.base.util.ScriptUtil.executeScript(ScriptUtil.java:348) at org.ofbiz.base.util.ScriptUtil.executeScript(ScriptUtil.java:324) at org.ofbiz.widget.ModelWidgetAction$Script.runAction(ModelWidgetAction.java:416) at org.ofbiz.widget.ModelWidgetAction.runSubActions(ModelWidgetAction.java:116) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:184) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) ... 81 more