Hello Everybody!

While trying to upgrade xwkiki from version 0.9.543 via "database copy" as
recommended in 

 
http://platform.xwiki.org/xwiki/bin/view/AdminGuide/UpgradeXWiki09Installation

we got lots of warnings in catalina*.log like this:

WARN  rcs.XWikiRCSArchive             - isDiff: Archive is inconsistent.
Text and diff field are contradicting. version=1.1

After a while, the result of "http://HOSTNAME:8180/xwiki17/bin/view/Main/";
contains 

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: java.lang.String

Full excerpt on this from catalina*.log can be found below. But what does
all this mean? 
Can you please give me a hint? Do you need any other (config) info?

Thanks in advance!
Stefan

LOGFILE:
15:09:11,753  WARN http-8180-Processor24  RequestUtils:createActionForm:175
- No FormBeanConfig found under 'view'
com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving
document XWiki.XWikiPreferences
Wrapped Exception: java.lang.String
        at
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:590)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:135)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:128)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1282)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1244)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1239)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2916)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:748)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:668)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:316)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        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:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        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.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:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)


Wrapped Exception:

java.lang.ClassCastException: java.lang.String
        at org.hibernate.type.IntegerType.set(IntegerType.java:41)
        at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:136)
        at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:107)
        at
org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2002)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2248)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2665)
        at
org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:60)
        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
        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:343)
        at
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:866)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:837)
        at
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:580)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:135)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:128)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1282)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1244)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1239)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2916)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:748)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:668)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:316)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        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:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        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.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:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)
15:09:12,407  WARN http-8180-Processor24 
RequestProcessor:processException:528 - Unhandled Exception thrown: class
com.xpn.xwiki.XWikiException
15:09:12,407 ERROR http-8180-Processor24  [action]:invoke:253 -
Servlet.service() for servlet action threw exception
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: java.lang.String
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:326)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        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:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        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.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:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)


Wrapped Exception:


com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving
document XWiki.XWikiPreferences
Wrapped Exception: java.lang.String
        at
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:590)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:135)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:128)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1282)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1244)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1239)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2916)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:748)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:668)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:316)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        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:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        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.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:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)


Wrapped Exception:


java.lang.ClassCastException: java.lang.String
        at org.hibernate.type.IntegerType.set(IntegerType.java:41)
        at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:136)
        at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:107)
        at
org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2002)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2248)
        at
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2665)
        at
org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:60)
        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
        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:343)
        at
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:866)
        at
com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:837)
        at
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:580)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:135)
        at
com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:128)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1282)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1244)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1239)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2916)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:748)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:668)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:316)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135)
        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:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        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.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:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)



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