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KAHA commented on WICKET-6545: ------------------------------ Ok I can test it, but you have to tell me how can I use latest snapshot via MAVEN. > 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) -- This message was sent by Atlassian JIRA (v7.6.3#76005)