Hi, i completed the practice 1 application. While working with practice 2 am getting the below exception
Screen Render Error java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException at org.ofbiz.widget.screen.ModelScreenWidget$Form.getModelForm(ModelScreenWidget.java:886) at org.ofbiz.widget.screen.ModelScreenWidget$Form.renderWidgetString(ModelScreenWidget.java:862) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) at org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSection.renderWidgetString(ModelScreenWidget.java:734) at org.ofbiz.widget.screen.ModelScreenWidget$SectionsRenderer.render(ModelScreenWidget.java:172) at org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSectionInclude.renderWidgetString(ModelScreenWidget.java:764) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) at org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:704) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91) at org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100) at org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:796) at org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:537) at org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568) at org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(CrossSubdomainSessionValve.java:63) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) please guide me any better way to identify what went wrong. the error log below 2010-12-14 16:39:55,546 (http-0.0.0.0-8080-1) [ ModelScreenWidget.java:885:ERROR] ---- runtime exception report -------------------------------------------------- Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: Exception: java.lang.NullPointerException Message: null ---- stack trace --------------------------------------------------------------- java.lang.NullPointerException org.ofbiz.widget.ModelWidget.<init>(ModelWidget.java:65) org.ofbiz.widget.form.ModelForm.<init>(ModelForm.java:208) org.ofbiz.widget.form.FormFactory.createModelForm(FormFactory.java:155) org.ofbiz.widget.form.FormFactory.createModelForm(FormFactory.java:151) org.ofbiz.widget.form.FormFactory.getFormFromLocation(FormFactory.java:86) org.ofbiz.widget.screen.ModelScreenWidget$Form.getModelForm(ModelScreenWidget.java:882) org.ofbiz.widget.screen.ModelScreenWidget$Form.renderWidgetString(ModelScreenWidget.java:862) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSection.renderWidgetString(ModelScreenWidget.java:734) org.ofbiz.widget.screen.ModelScreenWidget$SectionsRenderer.render(ModelScreenWidget.java:172) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSectionInclude.renderWidgetString(ModelScreenWidget.java:764) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:704) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91) org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100) org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:796) org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:537) org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568) org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(CrossSubdomainSessionValve.java:63) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:619) -------------------------------------------------------------------------------- 2010-12-14 16:39:55,546 (http-0.0.0.0-8080-1) [ ModelScreen.java:402:ERROR] ---- runtime exception report -------------------------------------------------- Error rendering screen [component://practice/widget/CommonScreens.xml#CommonPracticeDecorator]: java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException. Rolling back transaction. Exception: java.lang.RuntimeException Message: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException ---- stack trace --------------------------------------------------------------- java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException org.ofbiz.widget.screen.ModelScreenWidget$Form.getModelForm(ModelScreenWidget.java:886) org.ofbiz.widget.screen.ModelScreenWidget$Form.renderWidgetString(ModelScreenWidget.java:862) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSection.renderWidgetString(ModelScreenWidget.java:734) org.ofbiz.widget.screen.ModelScreenWidget$SectionsRenderer.render(ModelScreenWidget.java:172) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSectionInclude.renderWidgetString(ModelScreenWidget.java:764) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:704) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91) org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100) org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:796) org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:537) org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568) org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(CrossSubdomainSessionValve.java:63) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:619) -------------------------------------------------------------------------------- 2010-12-14 16:39:55,546 (http-0.0.0.0-8080-1) [ TransactionUtil.java:231:ERROR] ---- exception report ---------------------------------------------------------- Rollback Only was set when trying to commit transaction here; throwing rollbackOnly cause exception Exception: javax.transaction.RollbackException Message: Unable to commit: transaction marked for rollback ---- stack trace --------------------------------------------------------------- javax.transaction.RollbackException: Unable to commit: transaction marked for rollback org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:271) org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245) org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:210) org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:196) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:426) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91) org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100) org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:796) org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:537) org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568) org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(CrossSubdomainSessionValve.java:63) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:619) -------------------------------------------------------------------------------- 2010-12-14 16:39:55,546 (http-0.0.0.0-8080-1) [ ModelScreen.java:428:ERROR] ---- exception report ---------------------------------------------------------- Could not commit transaction: org.ofbiz.entity.transaction.GenericTransactionException: Roll back error, could not commit transaction, was rolled back instead because of: Error rendering screen [component://practice/widget/CommonScreens.xml#CommonPracticeDecorator]: java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerExceptionjava.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException (Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException) Exception: org.ofbiz.entity.transaction.GenericTransactionException Message: Roll back error, could not commit transaction, was rolled back instead because of: Error rendering screen [component://practice/widget/CommonScreens.xml#CommonPracticeDecorator]: java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerExceptionjava.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException (Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException) ---- cause --------------------------------------------------------------------- Exception: java.lang.RuntimeException Message: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException ---- stack trace --------------------------------------------------------------- java.lang.RuntimeException: Error rendering included form named [ListPersons] at location [component://practice/widget/PracticeForms.xml]: java.lang.NullPointerException org.ofbiz.widget.screen.ModelScreenWidget$Form.getModelForm(ModelScreenWidget.java:886) org.ofbiz.widget.screen.ModelScreenWidget$Form.renderWidgetString(ModelScreenWidget.java:862) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSection.renderWidgetString(ModelScreenWidget.java:734) org.ofbiz.widget.screen.ModelScreenWidget$SectionsRenderer.render(ModelScreenWidget.java:172) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorSectionInclude.renderWidgetString(ModelScreenWidget.java:764) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:704) org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:143) org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:232) org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132) org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91) org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100) org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:796) org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:537) org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568) org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(CrossSubdomainSessionValve.java:63) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:619) -------------------------------------------------------------------------------- Thanks & Regards -- View this message in context: http://ofbiz.135035.n4.nabble.com/practice-application-2-throwing-exception-tp3086872p3086872.html Sent from the OFBiz - User mailing list archive at Nabble.com.