Method public java.lang.String com.abbcc.springrest.controller.user.site.piece.HeadBelowPiece.pieceBreadcrumbNavigator(java.lang.String,java.lang.String) threw an exception when invoked on com.abbcc.springrest.controller.user.site.SiteStaticController@2338360d The problematic instruction: ---------- ==> ${command.pieceBreadcrumbNavigator(belongPage,itemId) } [on line 1, column 1 in piece/hunk/hunk_breadcrumb_navigation.ftl] in include laymod.module.msignFtl [on line 5, column 25 in page_head.ftl] in include "page_head.ftl" [on line 13, column 25 in index.ftl] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateModelException: Method public java.lang.String com.abbcc.springrest.controller.user.site.piece.HeadBelowPiece.pieceBreadcrumbNavigator(java.lang.String,java.lang.String) threw an exception when invoked on com.abbcc.springrest.controller.user.site.SiteStaticController@2338360d at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:130) at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.Environment.include(Environment.java:1477) at freemarker.core.Include.accept(Include.java:169) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179) at freemarker.core.Environment.visit(Environment.java:415) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:79) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.Environment.include(Environment.java:1477) at freemarker.core.Include.accept(Include.java:169) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.Environment.process(Environment.java:188) at freemarker.template.Template.process(Template.java:237) at com.abbcc.helper.FreemarkerHelper.createHTML(FreemarkerHelper.java:159) at com.abbcc.helper.FreemarkerHelper$createHTML.call(Unknown Source) at com.abbcc.springrest.controller.user.site.SiteStaticController.staticToList(SiteStaticController.groovy:795) at com.abbcc.springrest.controller.user.site.SiteStaticController.this$14$staticToList(SiteStaticController.groovy) at com.abbcc.springrest.controller.user.site.SiteStaticController$this$14$staticToList.callCurrent(Unknown Source) at com.abbcc.springrest.controller.user.site.SiteStaticController.staticize(SiteStaticController.groovy:664) at com.abbcc.springrest.controller.user.site.SiteStaticController.publish(SiteStaticController.groovy:427) at sun.reflect.GeneratedMethodAccessor1238.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:421) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:409) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:774) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 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 com.abbcc.filter.Struts2Filter.doFilter(Struts2Filter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.abbcc.filter.EncodeFilter.doFilter(EncodeFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.abbcc.module.session.MemcachedSessionFilter.doFilter(MemcachedSessionFilter.java:63) 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:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.NullPointerException at com.abbcc.springrest.controller.user.site.piece.HeadBelowPiece.pieceBreadcrumbNavigator(HeadBelowPiece.java:479) at sun.reflect.GeneratedMethodAccessor943.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:835) at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:106) ... 75 more