See https://issues.apache.org/jira/browse/TAP5-1304
Basically, the Request service isn't set up yet in the method you are invoking.
Most likely, you want to contribute a filter to the RequestHandler
service pipeline, not the HttpServletRequestHandler pipeline.
On Wed, Oct 13, 2010 at 11:57 AM, Manuel Sugawara
<manuel.sugaw...@gmail.com> wrote:
> Hi all,
>
> Using tapestry 5.2.1. I have a filter that serves resources to clients
> (images, documents, etc). This filter uses an injected service to check if
> the user has the required permission to download the resource, but this is
> not working as expected. The authorization filter throws an exception when
> the following line is executed (full stack trace below):
>
> stateManager.getIfExists(Session.class);
>
> where stateManager is an ApplicationStateManager instance. The filter is
> build by the application module using:
>
> public static void
> contributeHttpServletRequestHandler(OrderedConfiguration<HttpServletRequestFilter>
> configuration, @Autobuild FileFilter fileFilter) {
> configuration.add("FileFilter", fileFilter);
> }
>
>
> The stack trace is:
>
> java.lang.NullPointerException
> at $Request_12ba6e8f229.getSession($Request_12ba6e8f229.java)
> at $Request_12ba6e8f207.getSession($Request_12ba6e8f207.java)
> at
> org.apache.tapestry5.internal.services.SessionApplicationStatePersistenceStrategy.exists(SessionApplicationStatePersistenceStrategy.java:80)
> at
> $ApplicationStatePersistenceStrategy_12ba6e8f228.exists($ApplicationStatePersistenceStrategy_12ba6e8f228.java)
> at
> org.apache.tapestry5.internal.services.ApplicationStateManagerImpl$ApplicationStateAdapter.exists(ApplicationStateManagerImpl.java:60)
> at
> org.apache.tapestry5.internal.services.ApplicationStateManagerImpl.getIfExists(ApplicationStateManagerImpl.java:140)
> at
> $ApplicationStateManager_12ba6e8f226.getIfExists($ApplicationStateManager_12ba6e8f226.java)
> at
> mx.unam.xfc.auth.services.impl.SessionServiceImpl.authenticated(SessionServiceImpl.java:65)
> at
> $SessionService_12ba6e8f223.authenticated($SessionService_12ba6e8f223.java)
> at
> mx.unam.xfc.auth.services.impl.AuthorizationServiceImpl.authorized(AuthorizationServiceImpl.java:33)
> at
> $AuthorizationService_12ba6e8f21c.authorized($AuthorizationService_12ba6e8f21c.java)
> at mx.unam.xfc.escuela.web.internal.FileFilter.service(FileFilter.java:89)
> at
> $HttpServletRequestHandler_12ba6e8f221.service($HttpServletRequestHandler_12ba6e8f221.java)
> at
> org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:915)
> at
> $HttpServletRequestHandler_12ba6e8f221.service($HttpServletRequestHandler_12ba6e8f221.java)
> at
> $HttpServletRequestHandler_12ba6e8f217.service($HttpServletRequestHandler_12ba6e8f217.java)
> at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:147)
> 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:829)
> 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.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
>
> Any idea what can be wrong?. If there are more details needed to debug this
> please just let me know. Thanks in advance.
>
> Regards,
> Manuel.
>
--
Howard M. Lewis Ship
Creator of Apache Tapestry
The source for Tapestry training, mentoring and support. Contact me to
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