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  1. MyFaces Core
  2. MYFACES-4285

NullPointerException because of 4099

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.3.0-beta, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4
    • 2.3-next-M1, 2.3.4, 2.2.15
    • None
    • None

    Description

      The improvement 4099 introduced with version 2.3 leads to a NullPointerException in TagAttributeImpl.java:550 View File on Github

       

      Location ccLocation = (Location) actx.getFaceletCompositionContext().
getCompositeComponentFromStack().getAttributes().get(
CompositeComponentELUtils.LOCATION_KEY);

      getCompositeComponentFromStack()  returns null, because there is no stack.

      The composite component is not calling any child components and used inside a ui:composition

       

      Usage of composite component in test.xhtml (simplified)

       

      <?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:cw="http://xmlns.jcp.org/jsf/composite/components"
xmlns:ui="http://java.sun.com/jsf/facelets">

<cw:attributeGroup
saveListener="#{customerBean.updateAttributeContainer(cc.wrapper)}"
wrapper="#{attributeGroup}" />

</ui:composition>

      The problem is caused because of "cc.wrapper". This worked in 2.2 and now we can't update.

       

      Error displayed on page (not helpful)

       

      /test.xhtml at line 16 and column 37 saveListener="#{customerBean.updateAttributeContainer(cc.wrapper)}" null

viewId=/test.xhtml
location=C:\data\workspace-eclipse\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\provDB-webapp\test.xhtml
phaseId=RENDER_RESPONSE(6)

Caused by:
java.lang.NullPointerException - /test.xhtml at line 16 and column 37 saveListener="#{customerBean.updateAttributeContainer(cc.wrapper)}" null
at org.apache.myfaces.view.facelets.tag.TagAttributeImpl.getValueExpression(TagAttributeImpl.java:550)

      Stack Trace

       

      javax.faces.view.facelets.TagAttributeException: /test.xhtml at line 16 and column 37 saveListener="#{customerBean.updateAttributeContainer(cc.wrapper)}" null
	at org.apache.myfaces.view.facelets.tag.TagAttributeImpl.getValueExpression(TagAttributeImpl.java:578)
	at org.apache.myfaces.view.facelets.tag.composite.CompositeComponentRule$ValueExpressionMetadata.applyMetadata(CompositeComponentRule.java:101)
	at org.apache.myfaces.view.facelets.tag.MetadataImpl.applyMetadata(MetadataImpl.java:45)
	at org.apache.myfaces.view.facelets.tag.composite.CompositeComponentResourceTagHandler.setAttributes(CompositeComponentResourceTagHandler.java:488)
	at org.apache.myfaces.view.facelets.tag.jsf.ComponentTagHandlerDelegate.apply(ComponentTagHandlerDelegate.java:290)
	at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:51)
	at org.apache.myfaces.view.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:160)
	at org.apache.myfaces.view.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:59)
	at org.apache.myfaces.view.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:48)
	at org.apache.myfaces.view.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:187)
	at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.buildView(FaceletViewDeclarationLanguage.java:483)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:79)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:266)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:206)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at de.my.core.tomcat.reverseproxy.ReverseProxySessionManager.doFilter(ReverseProxySessionManager.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
	at org.apache.myfaces.view.facelets.tag.TagAttributeImpl.getValueExpression(TagAttributeImpl.java:550)
	... 52 more

       

       

       

      Attachments

        1. mf4285.zip
          232 kB
          Jiyan Akgül

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MYFACES-4286 NullPointerException in TagAttribute.impl caused by MYFACEs-4099

          • Major - Major loss of function.
          • Closed
          links to

          Web Link GitHub Pull Request #180

          Activity

            People

              tandraschko Thomas Andraschko
              jakguel Jiyan Akgül
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              Dates

                Created:
                Updated:
                Resolved: