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.
