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https://issues.apache.org/jira/browse/MYFACES-3735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13680447#comment-13680447
]
Leonardo Uribe commented on MYFACES-3735:
-----------------------------------------
First of all thanks for report this issue. I think it is a bug that could
happen when by casuality two threads are building the same composite component
at the same time.
This is one of those issues that cannot be reproduced, because the conditions
where this happens are very rare. In this case, once the composite component
BeanInfo instance is built, it will not appear never again.
The solution is just ensure the volatile variable _cachedBeanInfo is written at
the finally block inside CompositeComponentDefinitionTagHandler and use
tempBeanInfo to hold the bean temporally.
That should work, but I'm not 100% sure about that, so please give it a try and
let me know if that works or not. I'll commit the code so you can just take a
snapshot to try. Thanks for your help.
> NullPointerException in CompositeMetadataTargetImpl.<init>
> ----------------------------------------------------------
>
> Key: MYFACES-3735
> URL: https://issues.apache.org/jira/browse/MYFACES-3735
> Project: MyFaces Core
> Issue Type: Bug
> Reporter: Ulf Liller
> Attachments: MYFACES-3735.patch
>
>
> In our application (MyFaces 2.1.10, RichFaces 4.2.2), the following exception
> is sometimes (rarely) thrown when logging in. If that happens, it completely
> breaks the app, all subsequent login attempts fail with the same exception.
> {code}
> java.lang.NullPointerException
> at
> org.apache.myfaces.view.facelets.tag.composite.CompositeMetadataTargetImpl.<init>(CompositeMetadataTargetImpl.java:58)
> at
> org.apache.myfaces.view.facelets.tag.composite.CompositeMetaRulesetImpl.<init>(CompositeMetaRulesetImpl.java:103)
> at
> org.apache.myfaces.view.facelets.tag.composite.CompositeComponentResourceTagHandler.createMetaRuleset(CompositeComponentResourceTagHandler.java:410)
> at
> org.apache.myfaces.view.facelets.tag.composite.CompositeComponentResourceTagHandler.setAttributes(CompositeComponentResourceTagHandler.java:401)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.setAttributes(BehaviorsAddingComponentHandlerWrapper.java:113)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:237)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> org.apache.myfaces.view.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:158)
> at
> org.apache.myfaces.view.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:57)
> at
> org.apache.myfaces.view.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:48)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:394)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:448)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:426)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:244)
> at
> org.apache.myfaces.view.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java:217)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> org.apache.myfaces.view.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:158)
> at
> org.apache.myfaces.view.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:57)
> at
> org.apache.myfaces.view.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:48)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:394)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:448)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:426)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:244)
> at
> org.apache.myfaces.view.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java:217)
> at
> org.apache.myfaces.view.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:86)
> at
> org.apache.myfaces.view.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:175)
> at
> org.apache.myfaces.view.facelets.impl.TemplateContextImpl$TemplateManagerImpl.apply(TemplateContextImpl.java:186)
> at
> org.apache.myfaces.view.facelets.impl.TemplateContextImpl.includeDefinition(TemplateContextImpl.java:131)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:460)
> at
> org.apache.myfaces.view.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:94)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:58)
> at
> org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53)
> at
> org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:294)
> at
> javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:53)
> at
> javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:49)
> at
> org.apache.myfaces.view.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:57)
> at
> org.apache.myfaces.view.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:48)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:394)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:448)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:426)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:244)
> at
> org.apache.myfaces.view.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:148)
> at
> org.apache.myfaces.view.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:57)
> at
> org.apache.myfaces.view.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:48)
> at
> org.apache.myfaces.view.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:179)
> at
> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.buildView(FaceletViewDeclarationLanguage.java:452)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:78)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:199)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.recommind.litigation.client.web.filters.LoginFilter.doFilter(LoginFilter.java:236)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.recommind.litigation.client.web.filters.CacheFilter.doFilter(CacheFilter.java:105)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.recommind.litigation.client.web.filters.TimerFilter.doFilter(TimerFilter.java:81)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.recommind.litigation.client.web.filters.EncodingFilter.doFilter(EncodingFilter.java:54)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> at java.lang.Thread.run(Thread.java:722)
> {code}
> I'm sorry that I can not give much info, we saw it happening during automated
> UI tests but have not been able to reproduce it in a way that we can debug it.
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