Hello,

When i try to delete a file attached to my virtual wiki i have this hibernate 
error message :

A problem occured while trying to service your request. Please contact the 
support if this happens again. 

Detailed information:
        Error number 0 in 3: Exception while hibernate execute
Wrapped Exception: could not get next sequence value
com.xpn.xwiki.XWikiException: Error number 0 in 3: Exception while hibernate 
execute
Wrapped Exception: could not get next sequence value
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1052)
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.executeWrite(XWikiHibernateBaseStore.java:1098)
        at 
com.xpn.xwiki.store.hibernate.HibernateAttachmentRecycleBinStore.saveToRecycleBin(HibernateAttachmentRecycleBinStore.java:83)
        at 
com.xpn.xwiki.doc.XWikiDocument.deleteAttachment(XWikiDocument.java:2799)
        at 
com.xpn.xwiki.doc.XWikiDocument.deleteAttachment(XWikiDocument.java:2782)
        at 
com.xpn.xwiki.web.DeleteAttachmentAction.action(DeleteAttachmentAction.java:72)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:215)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        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:596)
        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$CachedChain.doFilter(WebApplicationHandler.java:830)
        at 
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:135)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)
        at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
        at 
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
        at org.mortbay.http.HttpServer.service(HttpServer.java:954)
        at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
        at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983)
        at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
        at 
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)


Wrapped Exception:

java.sql.SQLException: ORA-02289: sequence does not exist

        at 
oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:74)
        at 
oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131)
        at 
oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:204)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:413)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:1034)
        at 
oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:194)
        at 
oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:791)
        at 
oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:866)
        at 
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1186)
        at 
oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3387)
        at 
oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3431)
        at 
oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1203)
        at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
        at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
        at 
org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:75)
        at 
org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
        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.store.hibernate.HibernateAttachmentRecycleBinStore$1.doInHibernate(HibernateAttachmentRecycleBinStore.java:87)
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1046)
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.executeWrite(XWikiHibernateBaseStore.java:1098)
        at 
com.xpn.xwiki.store.hibernate.HibernateAttachmentRecycleBinStore.saveToRecycleBin(HibernateAttachmentRecycleBinStore.java:83)
        at 
com.xpn.xwiki.doc.XWikiDocument.deleteAttachment(XWikiDocument.java:2799)
        at 
com.xpn.xwiki.doc.XWikiDocument.deleteAttachment(XWikiDocument.java:2782)
        at 
com.xpn.xwiki.web.DeleteAttachmentAction.action(DeleteAttachmentAction.java:72)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:215)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:596)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at 
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)
        at 
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:135)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at 
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.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(WebApplicationContext.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(SocketListener.java:244)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

We use an Oracle database and few actions lead (i will send emails to the list) 
to an exception like this one
Any one had this problem ?


System :
Windows Server 2003 SP2 in a VMWare instance
Oracle 10g
Java 1.6.0_12
Xwiki 1.7.1 from the pack Jetty/HSQL

Christophe PĂ©rinaud

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