Dear All, When trying to deploy the current version(s) of xwiki-enterprise-web (i.e. xwiki-enterprise-web-3.0-rc-1.war respectively xwiki-enterprise-web-2.7.1.war), I was facing the following error: "Error 500: Component manager has not been initialized before lookup for [org.xwiki.model.reference.DocumentReferenceResolver] for hint [currentmixed]" At the moment, we are still running XWiki Enterprise 1.7.14685. And, a couple of months ago, we have been also been able to deply Version 2.1.1 without any issues. It seems that CurrentMixedReferenceDocumentReferenceResolver has only been introduced with version 2.3M1 of Xwiki. Apparently a similar type of error has already been described on http://lists.xwiki.org/pipermail/users/2011-March/023456.html . Unfortunately, I couldn't find any definitive solution for this problem on the mailing list. I can confirm that XWikiServletContextListener is in fact contained in the web.xml configuration file: <listener> <listener-class>org.xwiki.container.servlet.XWikiServletContextListener< /listener-class> </listener> Our current setup is as follows: Xwiki is to be deployed to a Websphere application server (on a Solaris 5.10 SPARC environment). The underlying database is Oracle 10.2.0.3. The actual stack trace is as follows: java.lang.RuntimeException: Component manager has not been initialized before lookup for [org.xwiki.model.reference.DocumentReferenceResolver] for hint [currentmixed] at com.xpn.xwiki.web.Utils.getComponent(Utils.java:627) at com.xpn.xwiki.XWikiContext.<init>(XWikiContext.java:138) at com.xpn.xwiki.web.Utils.prepareContext(Utils.java:339) at com.xpn.xwiki.web.XWikiAction.initializeXWikiContext(XWikiAction.java:35 7) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:114) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:743) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.ja va:1146) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.ja va:1087) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:145) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilt er.java:152) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java: 68) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter. doFilter(SavedRequestRestorerFilter.java:218) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter. doFilter(SetCharacterEncodingFilter.java:112) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterC hain.java:87) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilter Manager.java:848) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilter Manager.java:691) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrap per.java:588) at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWr apper.java:526) at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3574) at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:269) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:831 ) at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1 478) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:1 33) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscriminatio n(HttpInboundLink.java:450) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(Ht tpInboundLink.java:508) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(Http InboundLink.java:296) at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpIC LReadCallback.java:102) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueMa nager.java:556) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager. java:606) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager. java:979) at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager .java:1064) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551) (...) [3/30/11 15:27:38:962 CEST] 00000064 WebApp E [Servlet Error]-[action]: java.lang.RuntimeException: Component manager has not been initialized before lookup for [org.xwiki.model.reference.DocumentReferenceResolver] for hint [currentmixed] at com.xpn.xwiki.web.Utils.getComponent(Utils.java:627) at com.xpn.xwiki.XWikiContext.<init>(XWikiContext.java:138) at com.xpn.xwiki.web.Utils.prepareContext(Utils.java:339) at com.xpn.xwiki.web.XWikiAction.initializeXWikiContext(XWikiAction.java:35 7) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:114) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:743) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.ja va:1146) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.ja va:1087) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:145) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilt er.java:152) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java: 68) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter. doFilter(SavedRequestRestorerFilter.java:218) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter. doFilter(SetCharacterEncodingFilter.java:112) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInst anceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterCh ain.java:130) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterC hain.java:87) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilter Manager.java:848) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilter Manager.java:691) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrap per.java:588) at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWr apper.java:526) at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3574) at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:269) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:831 ) at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1 478) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:1 33) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscriminatio n(HttpInboundLink.java:450) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(Ht tpInboundLink.java:508) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(Http InboundLink.java:296) at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpIC LReadCallback.java:102) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueMa nager.java:556) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager. java:606) at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager. java:979) at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager .java:1064) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551) Any idea where the source of the problem might be? Visit our website at http://www.ubs.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mails are not encrypted and cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. UBS reserves the right to retain all messages. Messages are protected and accessed only in legally justified cases.