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
, 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/ProjectManagemen
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(Embeddab
leComponentManager.java:356)
at
org.xwiki.component.embed.EmbeddableComponentManager.lookup(EmbeddableCo
mponentManager.java:109)
at
org.xwiki.component.internal.DefaultComponentManager.lookup(DefaultCompo
nentManager.java:85)
at
com.xpn.xwiki.wysiwyg.server.converter.internal.DefaultHTMLConverter.fro
mHTML(DefaultHTMLConverter.java:104)
at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion
Filter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
68)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor
erFilter.java:304)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi
ngFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
: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$Http11ConnectionHandler.process(
Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$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/ProjectManagemen
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.fro
mHTML(DefaultHTMLConverter.java:110)
at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion
Filter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
68)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor
erFilter.java:304)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi
ngFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
: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$Http11ConnectionHandler.process(
Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$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(Embeddab
leComponentManager.java:356)
at
org.xwiki.component.embed.EmbeddableComponentManager.lookup(EmbeddableCo
mponentManager.java:109)
at
org.xwiki.component.internal.DefaultComponentManager.lookup(DefaultCompo
nentManager.java:85)
at
com.xpn.xwiki.wysiwyg.server.converter.internal.DefaultHTMLConverter.fro
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(DefaultVeloci
tyEngine.java:200)
at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci
tyEngine.java:156)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere
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(RequestPr
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(Applica
tionFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion
Filter.java:152)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
68)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor
erFilter.java:304)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi
ngFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
: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$Http11ConnectionHandler.process(
Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$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(ASTReferen
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(ASTExpres
sion.java:62)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState
ment.java:85)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72
)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState
ment.java:87)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav
a:336)
at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci
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(ASTReferen
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(XWikiVelocityRendere
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(RequestPr
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(Applica
tionFilterChain.java:290) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion
Filter.java:152) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
68) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor
erFilter.java:304) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi
ngFilter.java:112) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233) at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191) at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127) at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
: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.process(
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(ASTReferen
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(ASTExpres
sion.java:62) at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState
ment.java:85) at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72
) at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState
ment.java:87) at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav
a:336) at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci
tyEngine.java:191) at
org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci
tyEngine.java:156) at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere
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(RequestPr
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(Applica
tionFilterChain.java:290) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion
Filter.java:152) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
68) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor
erFilter.java:304) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi
ngFilter.java:112) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206) at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233) at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191) at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127) at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
: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.process(
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(ASTReferen
ce.java:477) ... 46 more }}} )))
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