[jira] [Assigned] (WICKET-6545) Argument 'markup' may not be null.

["Andrea Del Bene (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-6545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrea Del Bene reassigned WICKET-6545:
---------------------------------------

    Assignee: Andrea Del Bene

> Argument 'markup' may not be null.
> ----------------------------------
>
>                 Key: WICKET-6545
>                 URL: https://issues.apache.org/jira/browse/WICKET-6545
>             Project: Wicket
>          Issue Type: Bug
>          Components: wicket
>    Affects Versions: 8.0.0-M9
>            Reporter: KAHA
>            Assignee: Andrea Del Bene
>            Priority: Critical
>
> After switch in maven POM from version M8 to M9 wicket has satred reporting problem
> "Argument 'markup' may not be null." during render component which is descendant of MarkupContainer.
>  
> In version 8.0.0-M8 was everythig allright, but in version 8.0.0-M9, there is error
> Message: Argument 'markup' may not be null.
> Root cause:
> java.lang.IllegalArgumentException: Argument 'markup' may not be null.
> at org.apache.wicket.util.lang.Args.notNull(Args.java:41)
> at org.apache.wicket.markup.MarkupStream.<init>(MarkupStream.java:65)
> at org.apache.wicket.markup.html.TransparentWebMarkupContainer.renderHeadForInnerSiblings(TransparentWebMarkupContainer.java:134)
> at org.apache.wicket.markup.html.TransparentWebMarkupContainer.internalRenderHead(TransparentWebMarkupContainer.java:89)
> at org.apache.wicket.markup.renderStrategy.ChildFirstHeaderRenderStrategy$1.component(ChildFirstHeaderRenderStrategy.java:85)
> at org.apache.wicket.markup.renderStrategy.DeepChildFirstVisitor.visit(DeepChildFirstVisitor.java:96)
> at org.apache.wicket.markup.renderStrategy.DeepChildFirstVisitor.visit(DeepChildFirstVisitor.java:87)
> at org.apache.wicket.markup.renderStrategy.DeepChildFirstVisitor.visit(DeepChildFirstVisitor.java:87)
> at org.apache.wicket.markup.renderStrategy.DeepChildFirstVisitor.visit(DeepChildFirstVisitor.java:51)
> at org.apache.wicket.markup.renderStrategy.ChildFirstHeaderRenderStrategy.renderChildHeaders(ChildFirstHeaderRenderStrategy.java:94)
> at org.apache.wicket.markup.renderStrategy.ChildFirstHeaderRenderStrategy.renderHeader(ChildFirstHeaderRenderStrategy.java:57)
> at org.apache.wicket.page.PartialPageUpdate.writeHeaderContribution(PartialPageUpdate.java:551)
> at org.apache.wicket.page.XmlPartialPageUpdate.writeComponent(XmlPartialPageUpdate.java:75)
> at org.apache.wicket.page.PartialPageUpdate.writeComponents(PartialPageUpdate.java:262)
> at org.apache.wicket.page.PartialPageUpdate.writeTo(PartialPageUpdate.java:162)
> at eu.abra.web.base.AjaxRequestHandler.respond(AjaxRequestHandler.java:343)
> at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:912)
> at org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
> at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:283)
> at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253)
> at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
> at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:262)
> at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:204)
> at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:286)
> at org.atmosphere.util.AtmosphereFilterChain.doFilter(AtmosphereFilterChain.java:119)
> at org.atmosphere.util.AtmosphereFilterChain.invokeFilterChain(AtmosphereFilterChain.java:96)
> at org.atmosphere.handler.ReflectorServletProcessor$FilterChainServletWrapper.service(ReflectorServletProcessor.java:317)
> at org.atmosphere.handler.ReflectorServletProcessor.onRequest(ReflectorServletProcessor.java:160)
> at org.atmosphere.cpr.AsynchronousProcessor.action(AsynchronousProcessor.java:199)
> at org.atmosphere.cpr.AsynchronousProcessor.suspended(AsynchronousProcessor.java:107)
> at org.atmosphere.container.BlockingIOCometSupport.service(BlockingIOCometSupport.java:63)



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