为什么我一登陆出现下面的错误!
HTTP Status 500 -
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type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.webflow.engine.ActionExecutionException: Exception thrown executing [AnnotatedAction@c4a2da targetAction = [email=org.jasig.cas.web.flow.AuthenticationViaFormAction@11a9310]org.jasig.cas.web.flow.AuthenticationViaFormAction@11a9310[/email], attributes = map['method' -> 'submit']] in state 'submit' of flow 'login-webflow' -- action execution attributes were 'map['method' -> 'submit']'; nested exception is java.lang.NullPointerException
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:488)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:441)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jasig.cas.web.init.SafeDispatcherServlet.service(SafeDispatcherServlet.java:115)
org.inspektr.common.web.ClientInfoThreadLocalFilter.doFilterInternal(ClientInfoThreadLocalFilter.java:48)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)