GWT Spring related post

[spandu]

Hi,

I am using GWT 2.0 integrated with Spring in the application, after
executing the application....when I try to login into the
application..I am getting the following error. I have searched a lot
to find out the solution, if anyone has encountered this kind of error
and found some solution, please help me out with this, I would atleast
need what might be the root cause for this exception..thanks in
advance.



[WARN] Exception while dispatching incoming RPC call
java.lang.NullPointerException
at javax.servlet.GenericServlet.getServletName(GenericServlet.java:
322)
at javax.servlet.GenericServlet.log(GenericServlet.java:277)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doGetSerializationPolicy(RemoteServiceServlet.java:
237)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.getSerializationPolicy(RemoteServiceServlet.java:
117)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java:
429)
at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
164)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:
86)
at
com.shris.emr.server.common.rpc.AbstractShrisRpcSerivce.handleRequest(AbstractShrisRpcSerivce.java:
60)
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:
48)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:
771)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:
716)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:
647)
at
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:
563)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1097)
at
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:
113)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:
76)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1088)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:343)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:
109)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:
83)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:
97)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:
100)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:
78)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:
54)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:
35)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:
187)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:
105)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:
79)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:
109)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:355)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:
149)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:
237)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:
167)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1088)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
360)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:
49)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
505)
at org.mortbay.jetty.HttpConnection
$RequestHandler.content(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
395)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:488)
[ERROR] 500 - POST /<ProjectName>/LoginCheck.do (127.0.0.1) 57 bytes
Request headers
Host: 127.0.0.1:8888
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:
1.9.2.18) Gecko/20110614 Firefox/3.6.18
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/
*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Referer: http://127.0.0.1:8888/Nexia/hosted.html?Nexia
Cookie: JSESSIONID=1ugijvzplkaeq
X-GWT-Permutation: HostedMode
X-GWT-Module-Base: http://127.0.0.1:8888/Nexia/
Content-Type: text/x-gwt-rpc; charset=utf-8
Content-Length: 137
Pragma: no-cache
Cache-Control: no-cache
Response headers
Content-Type: text/plain; charset=iso-8859-1
Expires: Sat, 1 January 2000 12:00:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Pragma: no-cache


Note : The app works fine with gwt-1.6.4

[George Georgovassilis]

I think that is a classic... you probably instantiated the controller
in an application-context rather than a web-application-context