[xwiki-users] Unknown entity: com.xpn.xwiki.plugin.activitystream.impl.ActivityEventImpl

hi, Whenever I do any update activity (e.g. creating a space, editing any page etc), there is an exception thrown on screen and the update operation is successful and I could see that if I reload the page. There was no such problem in XWS 1.0m1 and I can't tell if it's a problem with my environment I use: Sun JDK 1.6.0_04 (64-bit), JBoss 4.2.2, PostgreSQL 8.3. I tried to change from local to XA data source and there is no difference. The full stacktrace is attached at the bottom. Looks like ActivityEventImpl is missing? I've loaded everything from the XWS 1.0m2 xar. Any idea? Regards, mingfai *hibernate configuration:* <property name="connection.datasource">java:jdbc/hkjug-xwiki</property> <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property> <mapping resource="xwiki.hbm.xml"/> <mapping resource="feeds.hbm.xml"/> *stacktrace* 15:42:09,897 INFO [STDOUT] 2008-04-08 15:42:09,892 [ http://MY_HOST/bin/save/hkjug/WebHome] [ajp-MY_HOST-8009-3] WARN web.XWikiAction - Uncaught exception: Error number 0 in 11: Uncaught exception Wrapped Exception: Unknown entity: com.xpn.xwiki.plugin.activitystream.impl.ActivityEventImpl com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception Wrapped Exception: Unknown entity: com.xpn.xwiki.plugin.activitystream.impl.ActivityEventImpl at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:223) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.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.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 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:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619) Wrapped Exception: org.hibernate.MappingException: Unknown entity: com.xpn.xwiki.plugin.activitystream.impl.ActivityEventImpl at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:550) at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1338) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:98) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172) at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70) at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519) at com.xpn.xwiki.plugin.activitystream.impl.ActivityStreamImpl.addActivityEvent(ActivityStreamImpl.java:140) at com.xpn.xwiki.plugin.workspacesmanager.activities.WorkspacesActivityStream.notify(WorkspacesActivityStream.java:132) at com.xpn.xwiki.notify.DocChangeRule.verify(DocChangeRule.java:61) at com.xpn.xwiki.notify.XWikiNotificationManager.verify(XWikiNotificationManager.java:146) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1085) at com.xpn.xwiki.web.SaveAction.save(SaveAction.java:120) at com.xpn.xwiki.web.SaveAction.action(SaveAction.java:129) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.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.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 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:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619)