Hi, I've been happily using A4J on 1 page of my application for about a week now, but for some reason today it is not working... On every AJAX request I get a java.lang.IllegalStateException. I haven't changed any configuration files, so cannot work out why this is just started to happen. Any ideas? (I was using JBoss-4.0.4.GA with Seam-1.1.0.BETA2 and have upgraded to JBoss-4.0.5.GA with Seam-1.1.0.CR1 on the off-chance that would help, but no luck). Any ideas? Here's the Stack Trace 10:25:18,877 ERROR [PhaseListenerManager] Exception in PhaseListener RENDER_RESPONSE(6) afterPhase java.lang.IllegalStateException: No application context active at org.jboss.seam.Component.forName(Component.java:1534) at org.jboss.seam.Component.getInstance(Component.java:1584) at org.jboss.seam.Component.getInstance(Component.java:1567) at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:45) at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42) at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:134) at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:65) at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:192) at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71) at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56) at javax.faces.component.UIData.getValue(UIData.java:1019) at org.apache.myfaces.component.html.ext.HtmlDataTableHack.createDataModel(HtmlDataTableHack.java:433) at org.apache.myfaces.component.html.ext.HtmlDataTable.createDataModel(HtmlDataTable.java:741) at org.apache.myfaces.component.html.ext.HtmlDataTableHack.getDataModel(HtmlDataTableHack.java:410) at org.apache.myfaces.component.html.ext.HtmlDataTable.getDataModel(HtmlDataTable.java:734) at org.apache.myfaces.component.html.ext.HtmlDataTableHack.getRowCount(HtmlDataTableHack.java:84) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:210) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:171) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524) at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:245) at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:225) at org.ajax4jsf.renderers.ajax.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:78) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524) at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:245) at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjaxChild(AjaxContainerRenderer.java:197) at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjaxChild(AjaxContainerRenderer.java:190) at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjaxChild(AjaxContainerRenderer.java:190) at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:126) at org.ajax4jsf.framework.ajax.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:570) at org.ajax4jsf.framework.ajax.AjaxContext.renderAjaxRegion(AjaxContext.java:260) at org.ajax4jsf.framework.renderer.AjaxPhaseListener.afterPhase(AjaxPhaseListener.java:96) at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersAfter(PhaseListenerManager.java:89) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:391) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:67) at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:223) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989982#... 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