Hello,
I do redirect and then forward in my code, and it works in most
cases. But sometime (in cca 20% of requests) I get ClassCastException.
The problem occurs not always on the same place, so I'm not able to
write steps to reproduce it - it looks like concurrent access to the
request (wrappers) from more threads. If I make reload of page after
the exception it works fine.
I use Stripes 1.4.3 on Jetty 6.1.8, ActionResolver configured for
.html suffix. Here is my code:
web.xml:
<filter-mapping>
<filter-name>StripesFilter</filter-name>
<servlet-name>StripesDispatcher</servlet-name>
<dispatcher>REQUEST</dispatcher>
<!-- i've tried also this but it didn't help
<dispatcher>FORWARD</dispatcher>
-->
</filter-mapping>
<servlet>
<servlet-name>StripesDispatcher</servlet-name>
<servlet-class>net.sourceforge.stripes.controller.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>StripesDispatcher</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
============================================
JSP:
<s:form action="/SelectObjects.html" name="objectsForm">
<s:submit name="searchNew">Search</s:submit>
</s:form>
============================================
SelectObjectsActionBean.java:
@DefaultHandler
public Resolution begin() {
return new ForwardResolution("/WEB-INF/jsp/objectList.jsp");
}
public Resolution search() {
return new ForwardResolution("/WEB-INF/jsp/searchForm.jsp");
}
public Resolution searchNew() {
// some logic here
return new RedirectResolution("/SelectObjects.html?search=").flash(this);
}
============================================
Stack trace:
java.lang.ClassCastException: org.mortbay.jetty.Request
at
net.sourceforge.stripes.controller.StripesFilter.flashInbound(StripesFilter.java:222)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:179)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at
org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
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)
Do you have any idea, what could be wrong?
Thanks in advance for your help.
Best regards,
-- Josef Cacek
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