tinyui中存在这样的代码。
${session.setAttribute("menuList", jsonConvert(data));}
但是执行后会显示空白页面。这异常控制台没打印，页面也没打印。日志文件也没打印。

经谷歌浏览器检测异常如下

• /page/action/savemenulist.page
  ??[2,2]-[2,52]
  ===================================================================
  session.setAttribute("menuList",jsonConvert(data))
  ===================================================================

  at org.tinygroup.template.interpret.context.MemberFunctionCallProcessor.process(MemberFunctionCallProcessor.java:62)
  at org.tinygroup.template.interpret.context.MemberFunctionCallProcessor.process(MemberFunctionCallProcessor.java:32)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:97)
  at org.tinygroup.template.interpret.context.ValueProcessor.process(ValueProcessor.java:40)
  at org.tinygroup.template.interpret.context.ValueProcessor.process(ValueProcessor.java:31)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:97)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:101)
  at org.tinygroup.template.interpret.context.IfProcessor.process(IfProcessor.java:43)
  at org.tinygroup.template.interpret.context.IfProcessor.process(IfProcessor.java:32)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:97)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:101)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpretTree(TemplateInterpreter.java:101)
  at org.tinygroup.template.interpret.TemplateInterpreter.interpret(TemplateInterpreter.java:79)
  at org.tinygroup.template.interpret.TemplateFromContext.renderContent(TemplateFromContext.java:87)
  at org.tinygroup.template.impl.AbstractTemplate.render(AbstractTemplate.java:60)
  at org.tinygroup.template.impl.TemplateEngineDefault.renderTemplate(TemplateEngineDefault.java:473)
  at org.tinygroup.template.impl.TemplateEngineDefault.renderTemplateWithOutLayout(TemplateEngineDefault.java:415)
  at org.tinygroup.templateweb.TinyTemplateProcessor.reallyProcess(TinyTemplateProcessor.java:73)
  at org.tinygroup.weblayer.AbstractTinyProcessor.process(AbstractTinyProcessor.java:67)
  at org.tinygroup.weblayer.impl.TinyProcessorManagerImpl.execute(TinyProcessorManagerImpl.java:67)
  at org.tinygroup.weblayer.TinyFilterHandler.tinyFilterProcessor(TinyFilterHandler.java:105)
  at org.tinygroup.weblayer.impl.TinyFilterChain.doFilter(TinyFilterChain.java:62)
  at org.tinygroup.weblayer.filter.gzip.GZIPFilter.doFilter(GZIPFilter.java:48)
  at org.tinygroup.weblayer.impl.TinyFilterChain.doFilter(TinyFilterChain.java:59)
  at org.tinygroup.weblayer.impl.TinyFilterWrapper.filterWrapper(TinyFilterWrapper.java:70)
  at org.tinygroup.weblayer.TinyHttpFilter.doFilter(TinyHttpFilter.java:134)
  at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
  at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
  at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
  at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
  at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
  at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
  at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
  at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
  at org.mortbay.jetty.Server.handle(Server.java:326)
  at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
  at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:945)
  at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
  at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
  at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
  at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
  at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)