我的Web应用程序有时会出现空指针异常,该应用程序在RAD 8.5和WAS 8.5中运行。 唯一的例外是: An exception was thrown by one of the service methods of the servlet [Faces Servlet] in application [Gedit]. Exception created :
[java.lang.NullP
我们最近从6.1迁移到了WebSphere 7.0,并从JSF1.1升级到了JSF1.2。每次会话过期和任何通过浏览器提交现在我得到异常: Caused by: javax.faces.application.ViewExpiredException: viewId:/Foo/Bar.jsp - View /Foo/Bar.jsp could not be restored.
我怎样才能防止这