I tried another approach, which unfortunately did not work as well.

I copied the source of Tapestry's BaseURLSourceImpl. Then renamed it to 
CustomBaseURLSourceImpl. For the purpose of the test I did not even modify the 
source, only gave the class a new name.

Then I tried to contribute it as a service override like that:


    public static void 
contributeServiceOverride(MappedConfiguration<Class,Object> configuration){
        configuration.add(BaseURLSource.class, BodenkurierBaseURLSource.class);
    }


The application started without exception, but on each request I end up with 
the exception below.

What am I doing wrong with my attempt to configure my CustomBaseURLSource?

Andy



java.lang.RuntimeException: Exception constructing service 
'AssetPathConstructor': Cannot cast java.lang.Class to 
org.apache.tapestry5.services.BaseURLSource
        at 
org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:75)
        at 
org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.createObject(JustInTimeObjectCreator.java:54)
        at $AssetPathConstructor_13264d9b38100810.delegate(Unknown Source)
        at $AssetPathConstructor_13264d9b38100810.constructAssetPath(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.ClasspathAssetAliasManagerImpl.toClientURL(ClasspathAssetAliasManagerImpl.java:103)
        at $ClasspathAssetAliasManager_13264d9b38100809.toClientURL(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.ClasspathAssetFactory.buildDefaultPath(ClasspathAssetFactory.java:79)
        at 
org.apache.tapestry5.internal.services.ClasspathAssetFactory.clientURL(ClasspathAssetFactory.java:59)
        at 
org.apache.tapestry5.internal.services.ClasspathAssetFactory.access$000(ClasspathAssetFactory.java:33)
        at 
org.apache.tapestry5.internal.services.ClasspathAssetFactory$2.toClientURL(ClasspathAssetFactory.java:129)
        at 
org.apache.tapestry5.services.TapestryModule$28.renderMarkup(TapestryModule.java:1943)
        at $MarkupRenderer_13264d9b38100890.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$27.renderMarkup(TapestryModule.java:1931)
        at $MarkupRenderer_13264d9b38100890.renderMarkup(Unknown Source)
        at 
org.got5.tapestry5.jquery.services.js.JSModule$1.renderMarkup(JSModule.java:40)
        at $MarkupRenderer_13264d9b38100890.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$26.renderMarkup(TapestryModule.java:1913)
        at $MarkupRenderer_13264d9b38100890.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$25.renderMarkup(TapestryModule.java:1894)
        at $MarkupRenderer_13264d9b38100890.renderMarkup(Unknown Source)
        at $MarkupRenderer_13264d9b3810088a.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47)
        at $PageMarkupRenderer_13264d9b38100886.renderPageMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67)
        at $PageResponseRenderer_13264d9b38100816.renderPageResponse(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.DefaultRequestExceptionHandler.handleRequestException(DefaultRequestExceptionHandler.java:85)
        at 
$RequestExceptionHandler_13264d9b381007fe.handleRequestException(Unknown Source)
        at 
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:42)
        at $RequestHandler_13264d9b38100800.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:902)
        at $RequestHandler_13264d9b38100800.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:892)
        at $RequestHandler_13264d9b38100800.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90)
        at $RequestHandler_13264d9b38100800.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:105)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:95)
        at 
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:119)
        at $RequestHandler_13264d9b38100800.service(Unknown Source)
        at $RequestHandler_13264d9b381007f1.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:253)
        at 
org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
org.got5.tapestry5.jquery.services.AjaxUploadServletRequestFilter.service(AjaxUploadServletRequestFilter.java:26)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:108)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007ed.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007ec.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007eb.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007ea.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007e9.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56)
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:65)
        at 
nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52)
        at $HttpServletRequestFilter_13264d9b381007e8.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
        at $HttpServletRequestFilter_13264d9b381007ef.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:852)
        at $HttpServletRequestHandler_13264d9b381007f3.service(Unknown Source)
        at $HttpServletRequestHandler_13264d9b381007e6.service(Unknown Source)
        at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
        at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1486)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:138)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:540)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:213)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1096)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:432)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:175)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1030)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:136)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:201)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:317)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:445)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:268)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:229)
        at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:358)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:601)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:532)
        at java.lang.Thread.run(Thread.java:724)
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