bonjour

j'essaie de faire marcher la pagination avec mon extendedDataTable, ca provoque :
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2010-12-16 18:29:25,347 ERROR [[faces-servlet-name]] "Servlet.service()" pour la servlet faces-servlet-name a généré une exception
java.lang.NullPointerException
	at org.richfaces.model.ExtendedTableDataModel.getRowIndex(ExtendedTableDataModel.java:206)
	at org.ajax4jsf.component.UIDataAdaptorBase.getRowIndex(UIDataAdaptorBase.java:311)
	at javax.faces.component._ComponentUtils.idsAreEqual(_ComponentUtils.java:134)
	at javax.faces.component._ComponentUtils.findComponent(_ComponentUtils.java:97)
	at javax.faces.component.UIComponentBase.findComponent(UIComponentBase.java:449)
	at org.ajax4jsf.renderkit.RendererUtils.findComponentFor(RendererUtils.java:1037)
	at org.ajax4jsf.context.AjaxContextImpl.convertId(AjaxContextImpl.java:395)
	at org.ajax4jsf.context.AjaxContextImpl.addComponentToAjaxRender(AjaxContextImpl.java:375)
	at org.ajax4jsf.renderkit.AjaxRendererUtils.addRegionByName(AjaxRendererUtils.java:1043)
	at org.richfaces.component.UIDatascroller.broadcast(UIDatascroller.java:127)
	at org.ajax4jsf.component.UIDataAdaptorBase.broadcast(UIDataAdaptorBase.java:1387)
	at org.richfaces.component.UIExtendedDataTable.broadcast(UIExtendedDataTable.java:92)
	at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:329)
	at org.ajax4jsf.component.AjaxViewRoot.broadcastAjaxEvents(AjaxViewRoot.java:348)
	at org.ajax4jsf.application.AjaxViewHandler.processAjaxEvents(AjaxViewHandler.java:216)
	at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:169)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:182)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
	at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
	at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
	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.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
	at org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:406)
	at org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
	at org.apache.geronimo.tomcat.valve.ThreadCleanerValve.invoke(ThreadCleanerValve.java:40)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)
j'ai bien suivie l'exemple de richface... pourtant si j'utilise le trie d'une colonne sur le tableau la pagination fonctionne correctement après.

merci pour votre aide.