Re: [xwiki-users] Getting Error number 4001 frequently

10 Sep 2010

Caleb,

Thanks for the quick response. I'll keep digging into it. It's been
difficult to reproduce consistently, but it has happened in my dev
environment where I am the only user (though I'm not sure if I had the
document open in multiple tabs...). It definitely happens more
frequently in our production system, though the percentage may be about
the same (we have one user who is using that functionality on a regular
basis (i.e. that's pretty much all she's been doing for the past several
weeks).

I'll go file the issue now.

Thanks!

--Matt

-----Original Message-----
From: users-bounces(a)xwiki.org [mailto:users-bounces@xwiki.org] On Behalf
Of Caleb James DeLisle
Sent: Friday, September 10, 2010 1:09 PM
To: XWiki Users
Subject: Re: [xwiki-users] Getting Error number 4001 frequently

Hi,

It looks as though you have discovered a concurrency bug. What is the
version of your installation?
If you feel like creating an issue on jira.xwiki.org, that would be
great. I will look in to this.

A few questions:
Does it happen more often when there are a lot of users?
Just confirming the page is in /inline/ mode and not /preview/ or
/edit/? I ask because The log shows "h.com/xwiki/bin/preview/Project"
and the failing template is "/templates/wysiwyginput.vm".

Thanks for the report.

Caleb

Matthew Hildebrand wrote:
...
  I am frequently (and randomly it seems) getting a 4001
error while 
 parsing velocity page /templates/wysiwyginput.vm when loading pages 
 for inline-edits.

 This is happening both on fields that have wiki-syntax (2.0) content 
 and fields that while able to take wiki-syntax content, have only 
 plain text. (i.e. "Lengthy, detailed information as needed. A good use 
...
  of this would be training for new application
features. This will be 
 limited to text. If more is needed the user should be redirected to 
 more detailed help documentation.")

 If the inline-edit page is immediately hard-refreshed (<CTRL>+<F5>), 
 the message usually goes away and the correct content is displayed. 
 However, users often don't notice the problem until 3-5 edits later, 
 once the error message output has been saved to the field. (see log 
 messages
 below)

 The setup that I have is:

 -- Page

     -- 1 Class Object of type A w/ multiple properties (incl. several 
 textarea fields)

     -- Many Class Objects of type B w/ multiple properties (incl.
 several textarea fields)

     -- Many Class Objects of type C w/ multiple properties (incl.
 several textarea fields)

 The problem has occurred for objects from all three classes, and there 
...
  doesn't seem to be any consistency as to which
class/property it 
 happens to.

 The biggest thing that I can't figure out is that for one load of the 
 page it's fine, then it's broken, then (without changing the 
 underlying data or code) it's fine again.

 Thanks!

 --Matt

 Here is the output from the catalina.out log file:

 2010-09-09 18:12:59,874
 [http://xwiki.internal.nwresearch.com/xwiki/bin/preview/ProjectManagem
 en t/UseCase%2DAddEditDeleteListSystemUpdateNotifications] ERROR
 internal.DefaultHTMLConverter   - Can't find descriptor for the
 component [role = [org.xwiki.rendering.renderer.BlockRenderer] hint = 
 [default]]

 org.xwiki.component.manager.ComponentLookupException: Can't find 
 descriptor for the component [role = 
 [org.xwiki.rendering.renderer.BlockRenderer] hint = [default]]

         at
 org.xwiki.component.embed.EmbeddableComponentManager.initialize(Embedd
 ab
 leComponentManager.java:356)

         at
 org.xwiki.component.embed.EmbeddableComponentManager.lookup(Embeddable
 Co
 mponentManager.java:109)

         at
 org.xwiki.component.internal.DefaultComponentManager.lookup(DefaultCom
 po
 nentManager.java:85)

         at
 com.xpn.xwiki.wysiwyg.server.converter.internal.DefaultHTMLConverter.f
 ro
 mHTML(DefaultHTMLConverter.java:104)

         at
 com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversi
 on
 Filter.java:117)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
...
  68)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRest
 or
 erFilter.java:304)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEnco
 di
 ngFilter.java:112)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
 lv
 e.java:233)

         at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
 lv
 e.java:191)

         at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
 va
 :127)

         at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
 va
 :102)

         at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
...
  java:109)

         at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
 :2
 98)

         at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 85
 2)

         at
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
 s(
 Http11Protocol.java:588)

         at
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489
 )

         at java.lang.Thread.run(Thread.java:619)

 2010-09-09 18:12:59,890
 [http://xwiki.internal.nwresearch.com/xwiki/bin/preview/ProjectManagem
 en t/UseCase%2DAddEditDeleteListSystemUpdateNotifications] ERROR
 filter.ConversionFilter         - Exception while parsing HTML

 java.lang.RuntimeException: Exception while parsing HTML

         at
 com.xpn.xwiki.wysiwyg.server.converter.internal.DefaultHTMLConverter.f
 ro
 mHTML(DefaultHTMLConverter.java:110)

         at
 com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversi
 on
 Filter.java:117)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
...
  68)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRest
 or
 erFilter.java:304)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEnco
 di
 ngFilter.java:112)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
 lv
 e.java:233)

         at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
 lv
 e.java:191)

         at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
 va
 :127)

         at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
 va
 :102)

         at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
...
  java:109)

         at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
 :2
 98)

         at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 85
 2)

         at
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
 s(
 Http11Protocol.java:588)

         at
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489
 )

         at java.lang.Thread.run(Thread.java:619)

 Caused by: org.xwiki.component.manager.ComponentLookupException: Can't 
...
  find descriptor for the component [role = 
 [org.xwiki.rendering.renderer.BlockRenderer] hint = [default]]

         at
 org.xwiki.component.embed.EmbeddableComponentManager.initialize(Embedd
 ab
 leComponentManager.java:356)

         at
 org.xwiki.component.embed.EmbeddableComponentManager.lookup(Embeddable
 Co
 mponentManager.java:109)

         at
 org.xwiki.component.internal.DefaultComponentManager.lookup(DefaultCom
 po
 nentManager.java:85)

         at
 com.xpn.xwiki.wysiwyg.server.converter.internal.DefaultHTMLConverter.f
 ro
 mHTML(DefaultHTMLConverter.java:104)

         ... 22 more

 org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content 
 with id [/templates/wysiwyginput.vm]

         at
 org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelo
 ci
 tyEngine.java:200)

         at
 org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelo
 ci
 tyEngine.java:156)

         at
 com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRende
 re
 r.java:116)

         at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1791)

         at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:154)

         at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:224)

         at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)

         at
 org.apache.struts.action.RequestProcessor.processActionPerform(Request
 Pr
 ocessor.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:617)

         at 
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:290)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversi
 on
 Filter.java:152)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
...
  68)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRest
 or
 erFilter.java:304)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEnco
 di
 ngFilter.java:112)

         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235)

         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206)

         at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
 lv
 e.java:233)

         at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
 lv
 e.java:191)

         at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
 va
 :127)

         at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
 va
 :102)

         at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
...
  java:109)

         at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
 :2
 98)

         at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 85
 2)

         at
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
 s(
 Http11Protocol.java:588)

         at
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489
 )

         at java.lang.Thread.run(Thread.java:619)

 Caused by: org.apache.velocity.exception.VelocityException: Reference 
 evaluation threw an exception at /templates/wysiwyginput.vm[line 57, 
 column 7]

         at
 org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTRefer
 en
 ce.java:481)

         at
 org.apache.velocity.runtime.parser.node.ASTAndNode.evaluate(ASTAndNode
 .j
 ava:104)

         at
 org.apache.velocity.runtime.parser.node.ASTExpression.evaluate(ASTExpr
 es
 sion.java:62)

         at
 org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfSta
 te
 ment.java:85)

         at
 org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:
 72
 )

         at
 org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfSta
 te
 ment.java:87)

         at
 org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.j
 av
 a:336)

         at
 org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelo
 ci
 tyEngine.java:191)

         ... 39 more

 Caused by: java.util.ConcurrentModificationException

         at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)

         at java.util.HashMap$EntryIterator.next(HashMap.java:834)

         at java.util.HashMap$EntryIterator.next(HashMap.java:832)

         at java.util.AbstractMap.toString(AbstractMap.java:485)

         at
 org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTRefer
 en
 ce.java:477)

         ... 46 more

 Here is the output that displays in the field:

 Error number 4001 in 4: Error while parsing velocity page 
 /templates/wysiwyginput.vm Wrapped Exception: Failed to evaluate 
 content with id [/templates/wysiwyginput.vm] (% id="xwikierror1"
style="display:
...
  none;" %) ((( (% class="xwikierror" %)
{{{Error number 4001 in 4: 
 Error while parsing velocity page /templates/wysiwyginput.vm Wrapped
 Exception: Failed to evaluate content with id 
 [/templates/wysiwyginput.vm] com.xpn.xwiki.XWikiException: Error 
 number
 4001 in 4: Error while parsing velocity page 
 /templates/wysiwyginput.vm Wrapped Exception: Failed to evaluate 
 content with id [/templates/wysiwyginput.vm] at 
 com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRende
 re
 r.java:122) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1791) 
 at
 com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:154) at
 com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:224) at
 com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115) at 
 org.apache.struts.action.RequestProcessor.processActionPerform(Request
 Pr
 ocessor.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:617) at
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:290) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversi
 on
 Filter.java:152) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
...
  68) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRest
 or
 erFilter.java:304) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEnco
 di
 ngFilter.java:112) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
 lv
 e.java:233) at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
 lv
 e.java:191) at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
 va
 :127) at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
 va
 :102) at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
...
  java:109) at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
 :2
 98) at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 85
 2) at
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
 s(
 Http11Protocol.java:588) at
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489
 ) at java.lang.Thread.run(Thread.java:619) Wrapped Exception:
 org.apache.velocity.exception.VelocityException: Reference evaluation 
 threw an exception at /templates/wysiwyginput.vm[line 57, column 7] at 
...

org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTRefer
 en
 ce.java:481) at
 org.apache.velocity.runtime.parser.node.ASTAndNode.evaluate(ASTAndNode
 .j
 ava:104) at
 org.apache.velocity.runtime.parser.node.ASTExpression.evaluate(ASTExpr
 es
 sion.java:62) at
 org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfSta
 te
 ment.java:85) at
 org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:
 72
 ) at
 org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfSta
 te
 ment.java:87) at
 org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.j
 av
 a:336) at
 org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelo
 ci
 tyEngine.java:191) at
 org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelo
 ci
 tyEngine.java:156) at
 com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRende
 re
 r.java:116) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1791) 
 at
 com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:154) at
 com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:224) at
 com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115) at 
 org.apache.struts.action.RequestProcessor.processActionPerform(Request
 Pr
 ocessor.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:617) at
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:290) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversi
 on
 Filter.java:152) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
...
  68) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRest
 or
 erFilter.java:304) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEnco
 di
 ngFilter.java:112) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
 ca
 tionFilterChain.java:235) at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
 lt
 erChain.java:206) at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
 lv
 e.java:233) at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
 lv
 e.java:191) at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
 va
 :127) at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
 va
 :102) at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
...
  java:109) at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
 :2
 98) at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 85
 2) at
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces
 s(
 Http11Protocol.java:588) at
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489
 ) at java.lang.Thread.run(Thread.java:619) Caused by:
 java.util.ConcurrentModificationException at
 java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) at
 java.util.HashMap$EntryIterator.next(HashMap.java:834) at
 java.util.HashMap$EntryIterator.next(HashMap.java:832) at
 java.util.AbstractMap.toString(AbstractMap.java:485) at 
 org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTRefer
 en
 ce.java:477) ... 46 more }}} )))

 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users

_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Re: [xwiki-users] Getting Error number 4001 frequently