I believe this may be related....
at java.lang.Thread.run(Unknown Source) [na:1.6.0_35]
2012-11-14 12:24:39,797 [
http://localhost:8080/xwiki/bin/view/Main/] WARN
o.x.d
.i.DocumentTitleDisplayer - Failed to interpret title of document
[xwiki:XWiki.W
atchListClass].
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