ServletException "Client did not send 139 bytes as expected" when testing a gwt-gadget via iGoogle (during RPC call)

[rintcius]

Hi,
I am trying to get a gwt-gadget running, but I am getting the
exception below on the RPC call. Anybody has an idea what could be
going on?
The stacktrace below is when deployed on jetty, but I get a similar
exception on glassfish v2.
GWT version: 1.5.3. gwt-gadget version: 1.0.1

Thanks for any help,
Rintcius

[Fatal Error] :-1:-1: Premature end of file.
[Fatal Error] :-1:-1: Premature end of file.
2008-12-06 21:40:49.329:/:WARN: Exception while dispatching incoming
RPC call
javax.servlet.ServletException: Client did not send 139 bytes as
expected
at com.google.gwt.user.server.rpc.RPCServletUtils.readContentAsUtf8
(RPCServletUtils.java:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.reflection.CachedMethod.invoke
(CachedMethod.java:86)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:226)
at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:
1094)
at groovy.lang.ExpandoMetaClass.invokeStaticMethod
(ExpandoMetaClass.java:957)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod
(InvokerHelper.java:748)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN
(ScriptBytecodeAdapter.java:167)
at
org.codehaus.groovy.grails.plugins.gwt.GrailsRemoteServiceServlet.readContent
(GrailsRemoteServiceServlet.groovy:28)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(RemoteServiceServlet.java:77)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle
(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1097)
at
org.codehaus.groovy.grails.web.mapping.filter.UrlMappingsFilter.processFilterChain
(UrlMappingsFilter.java:157)
at
org.codehaus.groovy.grails.web.mapping.filter.UrlMappingsFilter.doFilterInternal
(UrlMappingsFilter.java:148)
at org.springframework.web.filter.OncePerRequestFilter.doFilter
(OncePerRequestFilter.java:75)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1088)
at
org.codehaus.groovy.grails.web.sitemesh.GrailsPageFilter.parsePage
(GrailsPageFilter.java:119)
at
org.codehaus.groovy.grails.web.sitemesh.GrailsPageFilter.doFilter
(GrailsPageFilter.java:82)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1088)
at
org.codehaus.groovy.grails.web.servlet.filter.GrailsReloadServletFilter.doFilterInternal
(GrailsReloadServletFilter.java:142)
at org.springframework.web.filter.OncePerRequestFilter.doFilter
(OncePerRequestFilter.java:75)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1088)
at
org.codehaus.groovy.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal
(GrailsWebRequestFilter.java:68)
at org.springframework.web.filter.OncePerRequestFilter.doFilter
(OncePerRequestFilter.java:75)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1088)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal
(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter
(OncePerRequestFilter.java:75)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate
(DelegatingFilterProxy.java:183)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter
(DelegatingFilterProxy.java:138)
at org.mortbay.jetty.servlet.ServletHandler$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.ContextHandlerCollection.handle
(ContextHandlerCollection.java:206)
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:324)
at org.mortbay.jetty.HttpConnection.handleRequest
(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:
211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
380)
at org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:395)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:450)

[jos]

I'm getting the same behavior in a completely different scenario
see my post where use of a return value List<String> causes this
failure, but
after changing the return to String[], problem goes away...
The interesting bits here are that we're both using different stacks
so what's your call signature look like?

http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/e689e7f110369e43/607c58c8e6f407c2?hl=en&lnk=gst&q=lient+did+not+send+bytes+#607c58c8e6f407c2

[sal...@gmail.com]

That error might be complicated.

Have you checked this thread about the issue:
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/9b4a98d0d50d2752/f05c27aa5131a153?hl=en&lnk=gst&q=expected+bytes#f05c27aa5131a153