It seems that this is the same problem as reported in 
http://jira.xwiki.org/jira/browse/XWIKI-2123.
I'm using XWiki 1.1 (1.1.2.5797).

Does anybody know a workaround for this issue?

> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] Behalf
> Of Magnus Grimsell
> Sent: Tuesday, April 22, 2008 11:08 AM
> To: [email protected]
> Subject: [xwiki-users] exception on update
> 
> 
> I just got an exception when trying to update a wiki page with a link.
> The page I try to link to is named "Byggsystemet" in space 
> "Utveckling".
> 
> Does anybody know why this happen and if there is a workaround?
> 
> java.sql.BatchUpdateException: Duplicate entry 
> '1127421030-Utveckling.Byggsystemet' for key 1
>       at 
> com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatemen
> t.java:896)
>       at 
> org.apache.commons.dbcp.DelegatingStatement.executeBatch(Deleg
> atingStatement.java:294)
>       at 
> org.apache.commons.dbcp.DelegatingStatement.executeBatch(Deleg
> atingStatement.java:294)
>       at 
> org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatc
> her.java:58)
>       at 
> org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatche
> r.java:195)
>       at 
> org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:230)
>       at 
> org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
>       at 
> org.hibernate.event.def.AbstractFlushingEventListener.performE
> xecutions(AbstractFlushingEventListener.java:296)
>       at 
> org.hibernate.event.def.DefaultFlushEventListener.onFlush(Defa
> ultFlushEventListener.java:27)
>       at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1009)
>       at 
> org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:356)
>       at 
> org.hibernate.transaction.JDBCTransaction.commit(JDBCTransacti
> on.java:106)
>       at 
> com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWi
> kiHibernateBaseStore.java:699)
>       at 
> com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWi
> kiHibernateBaseStore.java:673)
>       at 
> com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibe
> rnateStore.java:314)
>       at 
> com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheSto
> re.java:97)
>       at 
> com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheSto
> re.java:91)
>       at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:957)
>       at com.xpn.xwiki.web.SaveAction.save(SaveAction.java:119)
>       at com.xpn.xwiki.web.SaveAction.action(SaveAction.java:128)
>       at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:147)
>       at 
> org.apache.struts.action.RequestProcessor.processActionPerform
> (RequestProcessor.java:431)
>       at 
> org.apache.struts.action.RequestProcessor.process(RequestProce
> ssor.java:236)
>       at 
> org.apache.struts.action.ActionServlet.process(ActionServlet.j
> ava:1196)
>       at 
> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:616)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>       at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
>       at 
> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.do
> Filter(WebApplicationHandler.java:830)
>       at 
> com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetChara
> cterEncodingFilter.java:117)
>       at 
> org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.do
> Filter(WebApplicationHandler.java:821)
>       at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebAp
> plicationHandler.java:471)
>       at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler
> .java:568)
>       at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
>       at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebAppl
> icationContext.java:633)
>       at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
>       at org.mortbay.http.HttpServer.service(HttpServer.java:954)
>       at 
> org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
>       at 
> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983)
>       at 
> org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
>       at 
> org.mortbay.http.SocketListener.handleConnection(SocketListene
> r.java:244)
>       at 
> org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
>       at 
> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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