I'm using Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 with jboss_4.0.3. I installed : xwiki-workspaces-web-1.0.war<http://forge.objectweb.org/project/download… http://localhost:8080/xwiki/ HTTP Status 500 - ------------------------------ *type* Exception report *message* *description* *The server encountered an internal error () that prevented it from fulfilling this request.* *exception* javax.servlet.ServletException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: could not insert: [com.xpn.xwiki.doc.XWikiDocument] org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:697) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) *root cause* com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: could not insert: [com.xpn.xwiki.doc.XWikiDocument] com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:303) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:491) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:123) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:697) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) Log message : 16:54:12,838 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session org.hibernate.exception.GenericJDBCException: could not insert: [com.xpn.xwiki.doc.XWikiDocument] at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2267) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2660) at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:56) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:783) at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:754) at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:447) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:97) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:91) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1083) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1056) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1050) at com.xpn.xwiki.plugin.applicationmanager.core.doc.objects.classes.AbstractXClassManager.checkClassDocument(AbstractXClassManager.java:402) at com.xpn.xwiki.plugin.applicationmanager.core.doc.objects.classes.AbstractXClassManager.check(AbstractXClassManager.java:368) at com.xpn.xwiki.plugin.applicationmanager.doc.XWikiApplicationClass.getInstance(XWikiApplicationClass.java:260) at com.xpn.xwiki.plugin.applicationmanager.ApplicationManager.getApplicationList(ApplicationManager.java:184) at com.xpn.xwiki.plugin.applicationmanager.ApplicationManager.updateAllApplicationTranslation(ApplicationManager.java:378) at com.xpn.xwiki.plugin.applicationmanager.ApplicationManagerPlugin.init(ApplicationManagerPlugin.java:92) at com.xpn.xwiki.plugin.XWikiPluginManager.initPlugin(XWikiPluginManager.java:146) at com.xpn.xwiki.plugin.XWikiPluginManager.addPlugin(XWikiPluginManager.java:76) at com.xpn.xwiki.plugin.XWikiPluginManager.addPlugins(XWikiPluginManager.java:107) at com.xpn.xwiki.XWiki.preparePlugins(XWiki.java:858) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:786) at com.xpn.xwiki.XWiki.<init>(XWiki.java:722) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:293) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:491) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:123) 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.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) 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:81) 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.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) 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)