“通信错误”而不是会话超时

Question

session timeout中的Vaadin存在问题。它没有显示会话超时消息，而是向我显示“通信问题”与我的login.jsp（我使用简单login.jsp进行授权）。<登记/> 也许它与 widgetset addons 有一些共同之处？

这是客户端调试的调试输出

Communication error: (SyntaxError): XML tag name mismatch (expected link) stack: zV@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:1768 MV@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:3200 rm@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:2431 Rm@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:3197 @http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:1742 Rb@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:1370 Ub@http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:2675 @http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html:1895 fileName: http://localhost:8080/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/CBF9DC5091288C6257657899E893380C.cache.html lineNumber: 1771 - Original JSON-text:head>