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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (JIRA)" <ta...@jakarta.apache.org> on 2005/10/07 17:19:47 UTC
[jira] Created: (TAPESTRY-696) Race condition during page loading can cause anomoylous exceptions related to annotations
Race condition during page loading can cause anomoylous exceptions related to annotations
-----------------------------------------------------------------------------------------
Key: TAPESTRY-696
URL: http://issues.apache.org/jira/browse/TAPESTRY-696
Project: Tapestry
Type: Bug
Components: Framework
Versions: 4.0
Reporter: Howard M. Lewis Ship
Assigned to: Howard M. Lewis Ship
Priority: Blocker
Been seeing a trickle of thsee on the mailing lists, under load, Tapestry may try to enhance the same class twice and the annotations (many of which work by modifying the in-memory component specification) cause exceptions as they conflict with themselves.
Error: An error occured processing annotation
@org.apache.tapestry.annotations.InjectState(value=visit) of public
abstract com.mcelroy.auth.Visit
com.mcelroy.auth.component.Border.getVisitObject(): Property visitObject
has already been accounted for by the element at Annotation
@org.apache.tapestry.annotations.InjectState(value=visit) of public
abstract com.mcelroy.auth.Visit
com.mcelroy.auth.component.Border.getVisitObject().
Am I doing something wrong here? I can transition from page-to-page
without any trouble as long as I'm not entering the app through the
external service.
In case it's useful, here's the full stack trace:
*
org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
*
org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
*
org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
*
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:125)
*
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:108)
*
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:68)
*
$EnhancementWorker_106b7b9f8bb.performEnhancement($EnhancementWorker_106b7b9f8bb.java)
*
$EnhancementWorker_106b7b9f8bd.performEnhancement($EnhancementWorker_106b7b9f8bd.java)
*
$EnhancementWorker_106b7b9f89d.performEnhancement($EnhancementWorker_106b7b9f89d.java)
*
org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:79)
*
$ComponentConstructorFactory_106b7b9f888.getComponentConstructor($ComponentConstructorFactory_106b7b9f888.java)
*
org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:565)
*
org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:515)
*
$IPageLoader_106b7b9f882.createImplicitComponent($IPageLoader_106b7b9f882.java)
*
$IPageLoader_106b7b9f883.createImplicitComponent($IPageLoader_106b7b9f883.java)
*
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
*
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
*
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
*
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
*
org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
*
$ComponentTemplateLoader_106b7b9f88c.loadTemplate($ComponentTemplateLoader_106b7b9f88c.java)
*
org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:671)
* org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
* org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
* $ViewProfile_41.finishLoad($ViewProfile_41.java)
* org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:473)
* org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:642)
* $IPageLoader_106b7b9f882.loadPage($IPageLoader_106b7b9f882.java)
* $IPageLoader_106b7b9f883.loadPage($IPageLoader_106b7b9f883.java)
* org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
* $IPageSource_106b7b9f7ed.getPage($IPageSource_106b7b9f7ed.java)
*
org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
* org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
* com.mcelroy.auth.pages.Login.activateExternalPage(Login.java:216)
*
org.apache.tapestry.engine.ExternalService.service(ExternalService.java:160)
* $IEngineService_106b7b9f87a.service($IEngineService_106b7b9f87a.java)
*
org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:65)
*
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
*
org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
*
$WebRequestServicer_106b7b9f84d.service($WebRequestServicer_106b7b9f84d.java)
*
org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48)
*
$WebRequestServicerFilter_106b7b9f84f.service($WebRequestServicerFilter_106b7b9f84f.java)
*
$WebRequestServicer_106b7b9f851.service($WebRequestServicer_106b7b9f851.java)
*
$WebRequestServicer_106b7b9f849.service($WebRequestServicer_106b7b9f849.java)
*
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
*
$ServletRequestServicer_106b7b9f82d.service($ServletRequestServicer_106b7b9f82d.java)
*
org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
*
$ServletRequestServicerFilter_106b7b9f829.service($ServletRequestServicerFilter_106b7b9f829.java)
*
$ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
*
org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
*
$ServletRequestServicerFilter_106b7b9f827.service($ServletRequestServicerFilter_106b7b9f827.java)
*
$ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
*
org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
*
$ServletRequestServicerFilter_106b7b9f82b.service($ServletRequestServicerFilter_106b7b9f82b.java)
*
$ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
*
$ServletRequestServicer_106b7b9f821.service($ServletRequestServicer_106b7b9f821.java)
*
org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:141)
*
org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:97)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
* org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
*
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
*
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
* org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
*
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
* org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
* org.mortbay.http.HttpServer.service(HttpServer.java:954)
* org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
* org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
* org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
*
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
* org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
* org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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[jira] Commented: (TAPESTRY-696) Race condition during page loading
can cause anomoylous exceptions related to annotations
Posted by "Geoff Callender (JIRA)" <de...@tapestry.apache.org>.
[ https://issues.apache.org/jira/browse/TAPESTRY-696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12487405 ]
Geoff Callender commented on TAPESTRY-696:
------------------------------------------
Just had this error again, and have found a way to create it at will. I have only seen it occuring on my Border component. The conditions are:
1. disable-caching=true
2. double-clicked on page's submit button.
3. listener detected second submit (uses flow token pattern) and threw PageRedirectException(...) before first submit got as far as activating new page (I put a Thread.sleep in the middle of the listener to make sure of this during testing).
4. first submit now tries to activate a page - it can be returning to same page, activating another, performing a callback, whatever, as long as that page has the same component - in my case the Border component.
For me the exception occurred on an @InjectState annotation in the Border, but when I moved the annotated field out of Border and into my base page the exception then occurred on the @Parameter annotation in the Border.
The problem doesn't happen with Firefox on Windows or OS X, because it seems to prevent the second submit by disabling the button, but it does happen with Safari 2.0.4 on OS X 10.4 and IE 6.0 on Win XP.
> Race condition during page loading can cause anomoylous exceptions related to annotations
> -----------------------------------------------------------------------------------------
>
> Key: TAPESTRY-696
> URL: https://issues.apache.org/jira/browse/TAPESTRY-696
> Project: Tapestry
> Issue Type: Bug
> Components: Framework
> Affects Versions: 4.0
> Reporter: Howard M. Lewis Ship
> Assigned To: Howard M. Lewis Ship
> Priority: Blocker
> Fix For: 4.0
>
>
> Been seeing a trickle of thsee on the mailing lists, under load, Tapestry may try to enhance the same class twice and the annotations (many of which work by modifying the in-memory component specification) cause exceptions as they conflict with themselves.
> Error: An error occured processing annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject(): Property visitObject
> has already been accounted for by the element at Annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject().
> Am I doing something wrong here? I can transition from page-to-page
> without any trouble as long as I'm not entering the app through the
> external service.
> In case it's useful, here's the full stack trace:
> *
> org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
> *
> org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
> *
> org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:125)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:108)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:68)
> *
> $EnhancementWorker_106b7b9f8bb.performEnhancement($EnhancementWorker_106b7b9f8bb.java)
> *
> $EnhancementWorker_106b7b9f8bd.performEnhancement($EnhancementWorker_106b7b9f8bd.java)
> *
> $EnhancementWorker_106b7b9f89d.performEnhancement($EnhancementWorker_106b7b9f89d.java)
> *
> org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:79)
> *
> $ComponentConstructorFactory_106b7b9f888.getComponentConstructor($ComponentConstructorFactory_106b7b9f888.java)
> *
> org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:565)
> *
> org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:515)
> *
> $IPageLoader_106b7b9f882.createImplicitComponent($IPageLoader_106b7b9f882.java)
> *
> $IPageLoader_106b7b9f883.createImplicitComponent($IPageLoader_106b7b9f883.java)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
> *
> $ComponentTemplateLoader_106b7b9f88c.loadTemplate($ComponentTemplateLoader_106b7b9f88c.java)
> *
> org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:671)
> * org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
> * org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
> * $ViewProfile_41.finishLoad($ViewProfile_41.java)
> * org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:473)
> * org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:642)
> * $IPageLoader_106b7b9f882.loadPage($IPageLoader_106b7b9f882.java)
> * $IPageLoader_106b7b9f883.loadPage($IPageLoader_106b7b9f883.java)
> * org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
> * $IPageSource_106b7b9f7ed.getPage($IPageSource_106b7b9f7ed.java)
> *
> org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
> * org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
> * com.mcelroy.auth.pages.Login.activateExternalPage(Login.java:216)
> *
> org.apache.tapestry.engine.ExternalService.service(ExternalService.java:160)
> * $IEngineService_106b7b9f87a.service($IEngineService_106b7b9f87a.java)
> *
> org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:65)
> *
> org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
> *
> org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
> *
> $WebRequestServicer_106b7b9f84d.service($WebRequestServicer_106b7b9f84d.java)
> *
> org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48)
> *
> $WebRequestServicerFilter_106b7b9f84f.service($WebRequestServicerFilter_106b7b9f84f.java)
> *
> $WebRequestServicer_106b7b9f851.service($WebRequestServicer_106b7b9f851.java)
> *
> $WebRequestServicer_106b7b9f849.service($WebRequestServicer_106b7b9f849.java)
> *
> org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
> *
> $ServletRequestServicer_106b7b9f82d.service($ServletRequestServicer_106b7b9f82d.java)
> *
> org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
> *
> $ServletRequestServicerFilter_106b7b9f829.service($ServletRequestServicerFilter_106b7b9f829.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
> *
> $ServletRequestServicerFilter_106b7b9f827.service($ServletRequestServicerFilter_106b7b9f827.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
> *
> $ServletRequestServicerFilter_106b7b9f82b.service($ServletRequestServicerFilter_106b7b9f82b.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> $ServletRequestServicer_106b7b9f821.service($ServletRequestServicer_106b7b9f821.java)
> *
> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:141)
> *
> org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:97)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> * org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
> *
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
> *
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
> *
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
> * org.mortbay.http.HttpServer.service(HttpServer.java:954)
> * org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
> * org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
> * org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
> *
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
> * org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
> * org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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[jira] Commented: (TAPESTRY-696) Race condition during page loading can cause anomoylous exceptions related to annotations
Posted by "Howard M. Lewis Ship (JIRA)" <ta...@jakarta.apache.org>.
[ http://issues.apache.org/jira/browse/TAPESTRY-696?page=comments#action_12331602 ]
Howard M. Lewis Ship commented on TAPESTRY-696:
-----------------------------------------------
I believe the culprit is ComponentConstructorFactoryImpl.getComponentConstructor().
This method encapsulates the entire enhancement process, including the part where annoations updated the component specification.
The method isn't synchronized, but is a classic null-check situation.
I'm adding a synchronized block that synchronizes on the component specification object. I think that is safe, and will provide the best throughput (rather than just adding a synchronized modifier to the method). This will allow multiple threads to enhance different components or pages simultaneously.
> Race condition during page loading can cause anomoylous exceptions related to annotations
> -----------------------------------------------------------------------------------------
>
> Key: TAPESTRY-696
> URL: http://issues.apache.org/jira/browse/TAPESTRY-696
> Project: Tapestry
> Type: Bug
> Components: Framework
> Versions: 4.0
> Reporter: Howard M. Lewis Ship
> Assignee: Howard M. Lewis Ship
> Priority: Blocker
>
> Been seeing a trickle of thsee on the mailing lists, under load, Tapestry may try to enhance the same class twice and the annotations (many of which work by modifying the in-memory component specification) cause exceptions as they conflict with themselves.
> Error: An error occured processing annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject(): Property visitObject
> has already been accounted for by the element at Annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject().
> Am I doing something wrong here? I can transition from page-to-page
> without any trouble as long as I'm not entering the app through the
> external service.
> In case it's useful, here's the full stack trace:
> *
> org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
> *
> org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
> *
> org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:125)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:108)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:68)
> *
> $EnhancementWorker_106b7b9f8bb.performEnhancement($EnhancementWorker_106b7b9f8bb.java)
> *
> $EnhancementWorker_106b7b9f8bd.performEnhancement($EnhancementWorker_106b7b9f8bd.java)
> *
> $EnhancementWorker_106b7b9f89d.performEnhancement($EnhancementWorker_106b7b9f89d.java)
> *
> org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:79)
> *
> $ComponentConstructorFactory_106b7b9f888.getComponentConstructor($ComponentConstructorFactory_106b7b9f888.java)
> *
> org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:565)
> *
> org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:515)
> *
> $IPageLoader_106b7b9f882.createImplicitComponent($IPageLoader_106b7b9f882.java)
> *
> $IPageLoader_106b7b9f883.createImplicitComponent($IPageLoader_106b7b9f883.java)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
> *
> $ComponentTemplateLoader_106b7b9f88c.loadTemplate($ComponentTemplateLoader_106b7b9f88c.java)
> *
> org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:671)
> * org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
> * org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
> * $ViewProfile_41.finishLoad($ViewProfile_41.java)
> * org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:473)
> * org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:642)
> * $IPageLoader_106b7b9f882.loadPage($IPageLoader_106b7b9f882.java)
> * $IPageLoader_106b7b9f883.loadPage($IPageLoader_106b7b9f883.java)
> * org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
> * $IPageSource_106b7b9f7ed.getPage($IPageSource_106b7b9f7ed.java)
> *
> org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
> * org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
> * com.mcelroy.auth.pages.Login.activateExternalPage(Login.java:216)
> *
> org.apache.tapestry.engine.ExternalService.service(ExternalService.java:160)
> * $IEngineService_106b7b9f87a.service($IEngineService_106b7b9f87a.java)
> *
> org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:65)
> *
> org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
> *
> org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
> *
> $WebRequestServicer_106b7b9f84d.service($WebRequestServicer_106b7b9f84d.java)
> *
> org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48)
> *
> $WebRequestServicerFilter_106b7b9f84f.service($WebRequestServicerFilter_106b7b9f84f.java)
> *
> $WebRequestServicer_106b7b9f851.service($WebRequestServicer_106b7b9f851.java)
> *
> $WebRequestServicer_106b7b9f849.service($WebRequestServicer_106b7b9f849.java)
> *
> org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
> *
> $ServletRequestServicer_106b7b9f82d.service($ServletRequestServicer_106b7b9f82d.java)
> *
> org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
> *
> $ServletRequestServicerFilter_106b7b9f829.service($ServletRequestServicerFilter_106b7b9f829.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
> *
> $ServletRequestServicerFilter_106b7b9f827.service($ServletRequestServicerFilter_106b7b9f827.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
> *
> $ServletRequestServicerFilter_106b7b9f82b.service($ServletRequestServicerFilter_106b7b9f82b.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> $ServletRequestServicer_106b7b9f821.service($ServletRequestServicer_106b7b9f821.java)
> *
> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:141)
> *
> org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:97)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> * org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
> *
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
> *
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
> *
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
> * org.mortbay.http.HttpServer.service(HttpServer.java:954)
> * org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
> * org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
> * org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
> *
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
> * org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
> * org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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[jira] Commented: (TAPESTRY-696) Race condition during page loading
can cause anomoylous exceptions related to annotations
Posted by "Anthony Wang (JIRA)" <ta...@jakarta.apache.org>.
[ http://issues.apache.org/jira/browse/TAPESTRY-696?page=comments#action_12363611 ]
Anthony Wang commented on TAPESTRY-696:
---------------------------------------
just saw this same error with Tapestry 4.0 final, so there's some condition that's not covered by this fix - the stack trace looked pretty much the same, except that happened while handling an exception
sorry I don't have more info - I'm trying to repro it now
org.apache.hivemind.ApplicationRuntimeException: Error: An error occured
processing annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal(): Property global has
already been accounted for by the element at Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal(). [Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal()]
org.apache.tapestry.error.ExceptionPresenterImpl.presentException(ExceptionPresenterImpl.java:64)
com.xxx.web.yyy.services.ErrorPresenterImpl.presentException(ErrorPresenterImpl.java:69)
$ErrorPresenter_108d53d5750.presentException($ErrorPresenter_108d53d5750.java)
$ErrorPresenter_108d53d5751.presentException($ErrorPresenter_108d53d5751.java)
org.apache.tapestry.engine.AbstractEngine.activateExceptionPage(AbstractEngine.java:121)
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:280)
...
root cause
org.apache.hivemind.ApplicationRuntimeException: Error: An error occured
processing annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal(): Property global has
already been accounted for by the element at Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal(). [Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal()]
org.apache.tapestry.error.ExceptionPresenterImpl.presentException(ExceptionPresenterImpl.java:64)
...
root cause
org.apache.hivemind.ApplicationRuntimeException: Property global has already
been accounted for by the element at Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal(). [Annotation
@org.apache.tapestry.annotations.InjectState(value=global) of public abstract
com.xxx.web.yyy.Global
com.xxx.web.yyy.components.Border.getGlobal()]
org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:142)
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:110)
org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:70)
$EnhancementWorker_108d53d583a.performEnhancement($EnhancementWorker_108d53d583a.java)
$EnhancementWorker_108d53d583c.performEnhancement($EnhancementWorker_108d53d583c.java)
$EnhancementWorker_108d53d581c.performEnhancement($EnhancementWorker_108d53d581c.java)
org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:97)
$ComponentConstructorFactory_108d53d5809.getComponentConstructor($ComponentConstructorFactory_108d53d5809.java)
org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:531)
org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:481)
$IPageLoader_108d53d5803.createImplicitComponent($IPageLoader_108d53d5803.java)
$IPageLoader_108d53d5804.createImplicitComponent($IPageLoader_108d53d5804.java)
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
$ComponentTemplateLoader_108d53d580d.loadTemplate($ComponentTemplateLoader_108d53d580d.java)
org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:648)
org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
$Error_211.finishLoad($Error_211.java)
org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:439)
org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:613)
$IPageLoader_108d53d5803.loadPage($IPageLoader_108d53d5803.java)
$IPageLoader_108d53d5804.loadPage($IPageLoader_108d53d5804.java)
org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:120)
$IPageSource_108d53d5763.getPage($IPageSource_108d53d5763.java)
org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:268)
org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:251)
org.apache.tapestry.error.ExceptionPresenterImpl.presentException(ExceptionPresenterImpl.java:40)
> Race condition during page loading can cause anomoylous exceptions related to annotations
> -----------------------------------------------------------------------------------------
>
> Key: TAPESTRY-696
> URL: http://issues.apache.org/jira/browse/TAPESTRY-696
> Project: Tapestry
> Type: Bug
> Components: Framework
> Versions: 4.0
> Reporter: Howard M. Lewis Ship
> Assignee: Howard M. Lewis Ship
> Priority: Blocker
> Fix For: 4.0
>
> Been seeing a trickle of thsee on the mailing lists, under load, Tapestry may try to enhance the same class twice and the annotations (many of which work by modifying the in-memory component specification) cause exceptions as they conflict with themselves.
> Error: An error occured processing annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject(): Property visitObject
> has already been accounted for by the element at Annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject().
> Am I doing something wrong here? I can transition from page-to-page
> without any trouble as long as I'm not entering the app through the
> external service.
> In case it's useful, here's the full stack trace:
> *
> org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
> *
> org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
> *
> org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:125)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:108)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:68)
> *
> $EnhancementWorker_106b7b9f8bb.performEnhancement($EnhancementWorker_106b7b9f8bb.java)
> *
> $EnhancementWorker_106b7b9f8bd.performEnhancement($EnhancementWorker_106b7b9f8bd.java)
> *
> $EnhancementWorker_106b7b9f89d.performEnhancement($EnhancementWorker_106b7b9f89d.java)
> *
> org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:79)
> *
> $ComponentConstructorFactory_106b7b9f888.getComponentConstructor($ComponentConstructorFactory_106b7b9f888.java)
> *
> org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:565)
> *
> org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:515)
> *
> $IPageLoader_106b7b9f882.createImplicitComponent($IPageLoader_106b7b9f882.java)
> *
> $IPageLoader_106b7b9f883.createImplicitComponent($IPageLoader_106b7b9f883.java)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
> *
> $ComponentTemplateLoader_106b7b9f88c.loadTemplate($ComponentTemplateLoader_106b7b9f88c.java)
> *
> org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:671)
> * org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
> * org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
> * $ViewProfile_41.finishLoad($ViewProfile_41.java)
> * org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:473)
> * org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:642)
> * $IPageLoader_106b7b9f882.loadPage($IPageLoader_106b7b9f882.java)
> * $IPageLoader_106b7b9f883.loadPage($IPageLoader_106b7b9f883.java)
> * org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
> * $IPageSource_106b7b9f7ed.getPage($IPageSource_106b7b9f7ed.java)
> *
> org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
> * org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
> * com.mcelroy.auth.pages.Login.activateExternalPage(Login.java:216)
> *
> org.apache.tapestry.engine.ExternalService.service(ExternalService.java:160)
> * $IEngineService_106b7b9f87a.service($IEngineService_106b7b9f87a.java)
> *
> org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:65)
> *
> org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
> *
> org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
> *
> $WebRequestServicer_106b7b9f84d.service($WebRequestServicer_106b7b9f84d.java)
> *
> org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48)
> *
> $WebRequestServicerFilter_106b7b9f84f.service($WebRequestServicerFilter_106b7b9f84f.java)
> *
> $WebRequestServicer_106b7b9f851.service($WebRequestServicer_106b7b9f851.java)
> *
> $WebRequestServicer_106b7b9f849.service($WebRequestServicer_106b7b9f849.java)
> *
> org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
> *
> $ServletRequestServicer_106b7b9f82d.service($ServletRequestServicer_106b7b9f82d.java)
> *
> org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
> *
> $ServletRequestServicerFilter_106b7b9f829.service($ServletRequestServicerFilter_106b7b9f829.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
> *
> $ServletRequestServicerFilter_106b7b9f827.service($ServletRequestServicerFilter_106b7b9f827.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
> *
> $ServletRequestServicerFilter_106b7b9f82b.service($ServletRequestServicerFilter_106b7b9f82b.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> $ServletRequestServicer_106b7b9f821.service($ServletRequestServicer_106b7b9f821.java)
> *
> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:141)
> *
> org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:97)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> * org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
> *
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
> *
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
> *
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
> * org.mortbay.http.HttpServer.service(HttpServer.java:954)
> * org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
> * org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
> * org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
> *
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
> * org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
> * org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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[jira] Closed: (TAPESTRY-696) Race condition during page loading can cause anomoylous exceptions related to annotations
Posted by "Howard M. Lewis Ship (JIRA)" <ta...@jakarta.apache.org>.
[ http://issues.apache.org/jira/browse/TAPESTRY-696?page=all ]
Howard M. Lewis Ship closed TAPESTRY-696:
-----------------------------------------
Fix Version: 4.0
Resolution: Fixed
It's fair to say that you never really know if you've hit all the race conditions, but I'm very confident that this is a good fix.
> Race condition during page loading can cause anomoylous exceptions related to annotations
> -----------------------------------------------------------------------------------------
>
> Key: TAPESTRY-696
> URL: http://issues.apache.org/jira/browse/TAPESTRY-696
> Project: Tapestry
> Type: Bug
> Components: Framework
> Versions: 4.0
> Reporter: Howard M. Lewis Ship
> Assignee: Howard M. Lewis Ship
> Priority: Blocker
> Fix For: 4.0
>
> Been seeing a trickle of thsee on the mailing lists, under load, Tapestry may try to enhance the same class twice and the annotations (many of which work by modifying the in-memory component specification) cause exceptions as they conflict with themselves.
> Error: An error occured processing annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject(): Property visitObject
> has already been accounted for by the element at Annotation
> @org.apache.tapestry.annotations.InjectState(value=visit) of public
> abstract com.mcelroy.auth.Visit
> com.mcelroy.auth.component.Border.getVisitObject().
> Am I doing something wrong here? I can transition from page-to-page
> without any trouble as long as I'm not entering the app through the
> external service.
> In case it's useful, here's the full stack trace:
> *
> org.apache.tapestry.spec.ComponentSpecification.claimProperty(ComponentSpecification.java:674)
> *
> org.apache.tapestry.spec.ComponentSpecification.addInjectSpecification(ComponentSpecification.java:645)
> *
> org.apache.tapestry.annotations.InjectStateAnnotationWorker.performEnhancement(InjectStateAnnotationWorker.java:49)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:125)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performMethodEnhancement(AnnotationEnhancementWorker.java:108)
> *
> org.apache.tapestry.annotations.AnnotationEnhancementWorker.performEnhancement(AnnotationEnhancementWorker.java:68)
> *
> $EnhancementWorker_106b7b9f8bb.performEnhancement($EnhancementWorker_106b7b9f8bb.java)
> *
> $EnhancementWorker_106b7b9f8bd.performEnhancement($EnhancementWorker_106b7b9f8bd.java)
> *
> $EnhancementWorker_106b7b9f89d.performEnhancement($EnhancementWorker_106b7b9f89d.java)
> *
> org.apache.tapestry.services.impl.ComponentConstructorFactoryImpl.getComponentConstructor(ComponentConstructorFactoryImpl.java:79)
> *
> $ComponentConstructorFactory_106b7b9f888.getComponentConstructor($ComponentConstructorFactory_106b7b9f888.java)
> *
> org.apache.tapestry.pageload.PageLoader.instantiateComponent(PageLoader.java:565)
> *
> org.apache.tapestry.pageload.PageLoader.createImplicitComponent(PageLoader.java:515)
> *
> $IPageLoader_106b7b9f882.createImplicitComponent($IPageLoader_106b7b9f882.java)
> *
> $IPageLoader_106b7b9f883.createImplicitComponent($IPageLoader_106b7b9f883.java)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.createImplicitComponent(ComponentTemplateLoaderLogic.java:218)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:172)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.process(ComponentTemplateLoaderLogic.java:111)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderLogic.loadTemplate(ComponentTemplateLoaderLogic.java:88)
> *
> org.apache.tapestry.services.impl.ComponentTemplateLoaderImpl.loadTemplate(ComponentTemplateLoaderImpl.java:60)
> *
> $ComponentTemplateLoader_106b7b9f88c.loadTemplate($ComponentTemplateLoader_106b7b9f88c.java)
> *
> org.apache.tapestry.pageload.PageLoader.loadTemplateForComponent(PageLoader.java:671)
> * org.apache.tapestry.BaseComponent.readTemplate(BaseComponent.java:77)
> * org.apache.tapestry.BaseComponent.finishLoad(BaseComponent.java:107)
> * $ViewProfile_41.finishLoad($ViewProfile_41.java)
> * org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:473)
> * org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:642)
> * $IPageLoader_106b7b9f882.loadPage($IPageLoader_106b7b9f882.java)
> * $IPageLoader_106b7b9f883.loadPage($IPageLoader_106b7b9f883.java)
> * org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
> * $IPageSource_106b7b9f7ed.getPage($IPageSource_106b7b9f7ed.java)
> *
> org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
> * org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
> * com.mcelroy.auth.pages.Login.activateExternalPage(Login.java:216)
> *
> org.apache.tapestry.engine.ExternalService.service(ExternalService.java:160)
> * $IEngineService_106b7b9f87a.service($IEngineService_106b7b9f87a.java)
> *
> org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:65)
> *
> org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
> *
> org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
> *
> $WebRequestServicer_106b7b9f84d.service($WebRequestServicer_106b7b9f84d.java)
> *
> org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48)
> *
> $WebRequestServicerFilter_106b7b9f84f.service($WebRequestServicerFilter_106b7b9f84f.java)
> *
> $WebRequestServicer_106b7b9f851.service($WebRequestServicer_106b7b9f851.java)
> *
> $WebRequestServicer_106b7b9f849.service($WebRequestServicer_106b7b9f849.java)
> *
> org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
> *
> $ServletRequestServicer_106b7b9f82d.service($ServletRequestServicer_106b7b9f82d.java)
> *
> org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
> *
> $ServletRequestServicerFilter_106b7b9f829.service($ServletRequestServicerFilter_106b7b9f829.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
> *
> $ServletRequestServicerFilter_106b7b9f827.service($ServletRequestServicerFilter_106b7b9f827.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
> *
> $ServletRequestServicerFilter_106b7b9f82b.service($ServletRequestServicerFilter_106b7b9f82b.java)
> *
> $ServletRequestServicer_106b7b9f82f.service($ServletRequestServicer_106b7b9f82f.java)
> *
> $ServletRequestServicer_106b7b9f821.service($ServletRequestServicer_106b7b9f821.java)
> *
> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:141)
> *
> org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:97)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> * javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> * org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
> *
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
> *
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
> *
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
> * org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
> * org.mortbay.http.HttpServer.service(HttpServer.java:954)
> * org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
> * org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
> * org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
> *
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
> * org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
> * org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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